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2020 SES Abstract Submission

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Tracks and Minisymposia Titles

Taylor Medal Symposium Honoring Professor Sreenivasan 
Organizer: Prof. Yonggang Huang (Northwestern University)

Prager Medal Symposium Honoring Professor Ravi-Chandar 
Organizer: Prof. Oscar Lopez-Pamies (University of Illinois at Urbana-Champaign)

Eringen Medal Symposium Honoring Professor Hughes 
Organizers: Prof. Arif Masud (University of Illinois at Urbana-Champaign), Prof. Yonggang Huang (Northwestern University)

Engineering Science Medal Symposium Honoring Professor Saif 
Organizers: Prof. Sulin Zhang (Penn State), Prof. John Rogers (Northwestern University)

SES Honorees Symposium Invited talks by the Rice Medalist, the SES Young Investigator Medalists, and the SES fellows
Organizers: Jia-Liang Le (University of Minnesota),Stefano Gonella (University of Minnesota), Michele Guala (University of Minnesota)


Chair: Michele Guala (University of Minnesota)


Biological And Bio-Inspired Fluid Mechanics
Organizers: Hassan Masoud (Michigan Tech), Henry Fu (University of Utah), Arezoo Ardekani (Purdue University)

A myriad of biological systems and processes take the mechanics of fluids into their advantage in order to fulfill their function. Man-made systems inspired by these systems strive to do the same in order to bring to bear similar functionalities. These highlight the importance of the role that fluid dynamics plays in understanding the function of biological systems and in how to derive inspiration from them. This symposium aims at bringing together engineers, mathematicians, and (bio) physicists to discuss recent theoretical, computational, and experimental studies related to biological and bio-inspired fluid mechanics.


Interactions Of Complex And Active Fluids With Structures
Organizers: Jeffrey Guasto (Tufts University), Henry Fu (University of Utah)

Spanning theory, simulation, and experiment, this symposium will focus on the state-of-the-art and current challenges facing our understanding of how complex and active fluids interact with microscale structures. Energy storage and self-actuation in fluids, stemming from viscoelastic rheology and swimming cells, lead to rich dynamics and functional behavior. These complex hydrodynamics can be coupled to micro-structured environments through geometry and flexibility in a host of important natural and industrial applications, with examples ranging from polymeric flows and cell motility in porous media to collective cell motion and flagellar actuation.


Turbulence In Geophysical Flows
Organizers: Michele Guala (University of Minnesota, Twin Cities), Judy Yang (University of Minnesota, Twin Cities)

We are interested in turbulent mechanisms that are relevant in geophysical environments, from clouds and the atmospheric surface layer, down to fluvial bed forms and landscapes


Chairs: James Hambleton (Northwestern University), Ryan Hurley (Johns Hopkins University)


Jamming Of Frictional And Non-Spherical Particles
Organizer: Corey OHern (Yale University)

Jamming (as well as unjamming) phenomena occur ubiquitously in a wide range of soft matter systems including granular media, colloidal dispersions, foams, and emulsions. Near jamming, these systems display complex spatiotemporal response to perturbations that includes avalanches, shear banding, shear thickening, stick-slip behavior, clogging, and other phenomena. Over the past 20 years, jamming behavior, primarily for frictionless spheres, has been well characterized in experiments and simulations and through theoretical calculations. Although there have been several important studies of jamming in systems composed of frictional spheres, or of nonspherical particles such as ellipsoids, rods, or staples, many fundamental questions concerning the jamming transition in soft matter systems composed of more realistic grains with nonspherical shapes and more complex surface properties still need to be addressed.
For example, what are the differences between the jamming transition for frictionless versus frictional particles; why are packings of frictionless spheres isostatic with the same number of contacts as degrees of freedom, whereas packings of nonspherical particles are hypostatic; how do we predict the structural and mechanical properties of a jammed packing obtained using different preparation methods; and what are the soft modes that dominate the mechanical response in disordered packings of elongated particles?
This invited session will feature talks from five groups with significant expertise in experimental, simulation, and theoretical studies of jamming in soft matter systems composed of frictional and non spherical particles.
Specific topics covered by the session will include the role of friction in shear-induced jamming, particle-scale reversibility during cyclic shear, and the structural and mechanical properties of packings composed of elongated particles such as ellipses and long rods.


Mechanics Of Granular Matter
Organizers: David Henann (Brown University), Ken Kamrin (MIT), Kimberly Hill (University of Minnesota)

Granular materials are ubiquitous in industry and as geomaterials in nature, displaying a variety of distinct phenomena due to their frictional/dissipative nature. Macroscopically, granular materials are capable of both solid-like and fluid-like behavior - e.g., elasto-visco-plastic behavior, shear-banding/localization, and fabric evolution due to evolving contact networks for the former and rate-sensitive rheological behavior depending on loading conditions and the internal material state for the latter. The presence of a pore fluid - either fully or partially saturating the pore space - enriches the phenomenology further. The varied behavior of granular materials at the macroscopic, continuum scale stems from the rich physics at the microstructural scale; however, understanding the underlying microscale mechanics and physics and making connections between the micro and continuum scales remain unresolved issues of current research. Experiments, theory and both particle and continuum modeling aimed at a deeper understanding of granular materials are necessary for improving continuum-level modeling for large-scale applications.
This symposium shall focus on the current state-of-the-art of research in the mechanics and physics of granular materials at length-scales ranging from the (micro) particle-scale to the (macro) continuum-scale. Topics of interest include experiments on dry and wet granular media, discrete modeling, homogenization approaches towards continuum modeling, and novel continuum theories based on plasticity or rheology.


Multiscale And Multiphysics Computations In Geomechanics
Organizers: Kane Bennett (Los Alamos National Laboratory), Joe Morris (Lawrence Livermore National Laboratory), Esteban Rougier (Los Alamos National Laboratory), Hari Viswanathan (Los Alamos National Laboratory), Oleg Vorobiev (Lawrence Livermore National Laboratory)

Geophysical systems are multiscale and multiphysical in nature because the geomaterials that comprise them are multiphase porous materials whose macroscopic mechanical and dynamical behavior is governed by properties that pertain, broadly speaking, to smaller scales. Predictive modeling response of geomaterials within geophysical systems therefore often involves several simultaneous processes occurring at different length and time scales, requiring novel constitutive and numerical modeling approaches. This symposium provides a forum to present and discuss approaches for bridging scales and physical processes of interest for geoscience and engineering applications.
Topics within the scope of interest include but are not limited to:

  • multiscale numerical methods (e.g., FE2, combining MD, MPM, DEM, FEM, FDEM, etc.),
  • development and validation of constitutive models that address multiphysical and/or multiscale coupling,
  • techniques to model crack growth and fragmentation processes in geomaterials,
  • discrete and continuum formulations for geomechanics and geodynamics problems,
  • data-driven modeling techniques for geomaterials and/or geosystems,
  • statistical approaches for geomaterial scale-bridging techniques, • experimental efforts related to method developments.


Chairs: Gianluca Cusatis (Northwestern University), Marco Salviato (University of Washington)


Dislocation, Twinning, Phase Transformation, Damage, And Their Interactions In Solid Materials
Organizers: Liming Xiong (Iowa State University), Jian Wang (University of Nebraska-Lincoln), Jeffrey Lloyd (Army Research Laboratory), Garritt J. Tucker (Colorado School of Mines)

The main scope of the Symposium is to present and discuss recent developments understanding the activities of dislocations, twinning, phase transitions, damage, and their interactions, in solid materials exposed to stress, temperature, corrosion, irradiation, and many other conditions. The primary focus of this symposium is (i) to present and discuss recent developments on experimental and computer modeling of dislocation-, twinning-, phase transformation-mediated plasticity, fracture, as well as their interaction from the atomistic to the macroscopic level; and (ii) to gain the knowledge that may be utilized for multiscale computational design of materials with desired strength, ductility, toughness, thermal-, corrosion-, irradiation-resistance, and even a combination of them.
The material system of interest to this issue includes, but is not limited to, fcc, bcc, hcp metals, lightweight Mg-, Ti-alloys, nanostructured alloys, multilayered metallic composites, superlattices of semiconductors, oxides, high-/medium-entropy alloys, biological/biomimetic materials, and so on.
Theoretical, computational, experimental, and applied studies as well as their synergistic coupling with experiments will be all welcome.


Friction And Fracture Of Quasi-Brittle Solids And Weak Interfaces
Organizers: David Kammer (ETH Zurich), Ahmed Elbanna (University of Illinois Urbana Champaign), Krishnaswa Ravi-Chandar (University of Texas at Austin)

Fracture is a fascinating, nonlinear and often dynamic, phenomenon occurring on many scales. In many systems, small-scale perturbations may lead to large scale system fragilities and catastrophic failure. Understanding the underpinnings of material response at the microscale, including origins of friction and adhesion, and their implications for fracture at macro scale is thus of vital importance to many engineering, biological, and geophysical applications.
This minisymposium solicits contributions in all fields related to multiscale physics, computational modeling and experimental investigations relevant to fracture and fragmentation processes in quasi-brittle solids and along weak interfaces.
Possible topics may include, but are not limited to: (a) constitutive modeling appropriate for modeling friction and adhesion at the microscale, (b) theoretical analysis of crack nucleation and initiation, (c) experimental observation of crack nucleation and propagation at different length scales (investigations on dynamic fracture is particularly welcome), and (d) computational modeling of fracture in heterogeneous systems.


Mechanics Of Interfacial Adhesion Across Diverse Scales And Applications
Organizers: Denizhan Yavas (University of Central Florida), Ashraf F. Bastawros (Iowa State University)

This symposium focuses on advancing mechanistic understanding of interfacial adhesion across diverse scales and engineering applications. The major goal of this symposium is to exchange ideas and scientific advancements in modeling, simulation and experimental characterization of interfacial adhesion under different environmental conditions. This track covers a broad range of material classes including composites, layered materials, thin films, 1D and 2D materials, bio-inspired materials, heterogeneous materials. Both experimental and computational work are encouraged.


Phase-Field Modeling And Machine Learning For Fracture And Material Characterization
Organizers: Christian Peco (Penn State), John Dolbow (Duke University), Christian Linder (Stanford University)

In recent years, fracture and damage models have received renewed attention, aimed to develop consistent approaches to address the influence of microstructure in crack evolution and nucleation. The effort to understand the connection between microscale phenomena and the macroscale properties is key for a variety of traditional applications in engineering (e.g., failure analysis), but also for advanced material characterization purposes. Fracture processes can be used as probes to test the limits of coupled materials systems, obtaining information that can be relevant later to analyze nonlinear behavior, nondestructive characterization techniques, or wave scattering. This aspect is now emphasized by the application of machine learning techniques to the treatment of large amounts of data coming from experimental campaigns.
The goal of this minisymposium is to bring together outstanding works in the field of fracture modeling, with an emphasis in the formulation and/or numerical analysis of methods in computational fracture mechanics and their combination with machine learning techniques, including but not limited to phasefield variational approaches, extended and generalized finite element methods, meshfree strategies, R-adaptive methods, discontinuous Galerkin, and other strong discontinuity strategies.
We encourage original contributions in the form of numerical methodologies that could improve the lens through which these phenomena are evaluated, and to works that explore different kinds of problems in engineering such as solid mechanics, chemical, magnetic and electrical applications. We make extensive this call to contributions related to the development of biological failure and 3D printing fracture pathologies.


Structural Integrity Of Additively Manufactured Metallic Materials
Organizers: Shuai Shao (Auburn University), Nima Shamsaei (Auburn University)

Additive manufacturing (AM) has superior abilities to fabricate parts with complex shapes and design, reduce lead-times and material waste, as well as to manufacture in remote locations. However, the unique processing conditions of AM, i.e. highly dynamic melt pools, high cooling rates, and repeated reheating-cooling, make parts exceedingly susceptible to microstructural inconsistencies and defect formation. The unique microstructure of AM materials may result in different mechanical properties than their wrought counterparts. The process induced defects, primarily gas entrapment pores and lack-of-fusions, can serve as the initiation sites for damage and failure, deteriorating the materials’ structural integrity.
This minisymposium focuses on the effect of these unique microscopic features of AM materials on their structural integrity. It welcomes fundamental research investigating/modeling/predicting the damage and failure mechanisms of AM materials in response to external loadings, including, but not limited to, monotonic and cyclic mechanical loading, thermal loading, corrosion and radiation.


Variational And Phase-Field Models Of Fracture
Organizers: Blaise Bourdin (Louisiana State University), Oscar Lopez-Pamies (University of Illinois at Urbana-Champaign)

Over the last 20 years or so, variational and phase-field models of fracture have been at the center of intense activity in the mathematics, physics, and engineering communities. They have demonstrated a remarkable ability to handle arbitrarily complex fracture phenomena including multi-field settings in two and three dimensions.
This minisymposium welcomes contributions on phase-field or other regularized models of fracture (including brittle, cohesive, and ductile fracture) in hard — such as ceramics, glasses, and metals — and soft solids — such as elastomers, hydrogels, and biological tissues. Research results on basic aspects of regularized formulations, their numerical implementation, as well as extensions to novel and/or more complex settings and relevant applications are all welcome. Contributions with a strong experimental component are also welcome.



Chairs: Sung Hoon Kang (Johns Hopkins University), Ahmed Elbana (University of Illinois at Urbana-Champaign)


Classical And Non-Classical Continuum Theories And Their Applications In Solid And Fluent Continua
Organizers: K.S. Surana (The University of Kansas), J.N. Reddy (Texas A&M University), Debasish Roy (Indian Institute of Science), A.D. Joy (The University of Mississippi)

The broad aim and objective of this symposium is to reflect on the current state of classical and non-classical continuum theories and their applications to solid and fluent continua and to provide a forum for sharing and identifying short- and long-term research opportunities and goals – in theoretical, computational as well as complementary experimental continuum mechanics. The field of classical continuum theories addresses a large majority of theoretical and practical questions that arise in day-to-day engineering science. However, these theories appear less than satisfactory when applied to modern engineered materials, processes and structures that require consideration of additional physics, involving multiple scales and consideration of microstructural behavior in the theories. Unlike classical continuum mechanics, non-classical continuum theories allow consideration of more comprehensive deformation physics, microstructural features, including defect distributions that generally are believed to be critical for inelastic response. Many physical deformation phenomena necessitate non-local consideration in the continuum theories to account for long-range interactions.
This symposium will consist of presentations on classical, non-classical and non-local continuum theories and their application to solid and fluent continua, including applications of these theories to beams, plates, shells, composite structures, architectured materials, functionally graded materials, fracture mechanics, plasticity, compressible and incompressible fluent continua, and other emerging topics in continuum mechanics.
Titles and abstracts are invited from interested colleagues on theoretical developments in classical and non-classical mechanics including non-local theories, granular mechanics, homogenization methods, constitutive theories, modern theories of plasticity, computational studies for model problems as well as experimental works. In addition, theoretical work and applications related to consideration of smaller scale physics including molecular and atomic interactions and non-equilibrium thermodynamics are also encouraged.


Damage And Thermo-Chemo-Mechanical Coupling In Polymers
Organizers: Maryam Shakiba (Virginia Tech), Meredith Silberstein (Cornell University)

The symposium aims to cover a broad range of topics related to research in the mechanics and multi-physics of polymers, with an emphasis on damage and recovery. Polymers are continuously exposed to detrimental environmental conditions. Environmental conditions such as temperature, humidity, magnetic field, UV exposure, and chemicals couple to mechanical loadings to degrade the properties of the polymers and reduce their lifetime. At the same time, advanced and responsive materials are being designed to harvest a smart response from the coupling of external stimuli and mechanical loading. Therefore, damage and thermo-chemo-mechanical modeling of polymers are imperative to understanding such materials. Physics-based and microstructure-based models are necessary to predict the highly nonlinear responses of this class of materials.
Topics of interest include but are not limited to fundamental mechanics and microstructure-based modeling of polymers; experiments and modeling of novel multifunctional polymers; and polymer design and processing. The objective of this symposium is to provide a platform for researchers from academia, industry and national labs to present, discuss and exchange the latest development in theoretical, computational, and experimental studies on multi-physics modeling of advanced polymeric materials. The mini-symposium seeks to encourage future collaboration between the attendees.


Distinct Element Method Mechanics Across Scales And Domains
Organizers: Traian Dumitrica (University of Minnesota), Igor Ostanin (University of Twente), Igor Berinskii (Tel Aviv University)

Distinct element method (DEM) has emerged as a powerful tool in geomechanics, for simulating the numerical mechanical problems involving granular materials, like soil and rock. More recently, DEM gained attention for the micro- and nano-scales a coarse-grained molecular dynamics (MD) method for microparticles, nanofibrous, and molecular systems. On the other hand, the coarse-graining concept of MD, in which atoms are artificially upscaled, could allow DEM to tackle larger scales based on scaling rules and larger distinct elements. Such cross-hybridization with the closely related MD could further the enormous potential of DEM across scales and application domains, although important technical and computational challenges, such as the representation of contact forces and moments resulting from the interaction potentials or upscaled distinct elements, remain to be resolved.
The objective of this symposium is to provide a forum for researchers working with DEM and MD to present concepts and advances impacting DEM expansion across scales and domains.


Mechanics And Physics Of Active Materials And Systems
Organizers: Theocharis Baxevanis (University of Houston), Ibrahim Karaman (Texas A&M University), Dimitris Lagoudas (Texas A&M University)

The topic of this symposium is broad, from a scientific understanding of the processes of deformation and mechanical failure, to the structural and functional effectiveness and reliability of active materials in engineering applications. The aim is to offer a platform for scientists and engineers to present and discuss experimental, modeling, and simulation research on the underlying physical mechanisms that govern the deformation response and failure in such materials, the connections between these processes, as well as on the design and performance evaluation of related structures. Both hard and soft active materials are considered, such as thermomechanical and ferromagnetic shape memory alloys, liquid crystal elastomers, magnetorheological elastomers, and any other type of material or system that responds to a non-mechanical stimulus.
Research presentations from both academia and industry are welcome.


Mechanics And Physics Of Soft Materials
Organizers: Qiming Wang (University of Southern California), Sung Hoon Kang (Johns Hopkins University), Victor Lefevre (Northwestern University)

The soft material is an increasingly active field of research driving science and technology into new exciting directions. Large deformations, coupled with various multiphysics phenomena and instabilities at different length scales, open an immensely rich research arena. This offers unique opportunities to develop multifunctional materials and devices with novel properties, through the targeted design of material composition and microstructural layout. Moreover, soft materials represent essential components in biological tissues, a topic of extreme interest for biomedical applications.
This mini-symposium will address recent experimental, computational, theoretical, and manufacturing advances in this direction. Topics of particular interest include:

  • Stimuli-responsive polymers (e.g., Electroactive and magnetoactive elastomers, shape-memory polymers, light-sensitive polymers, and liquid crystal elastomers)
  • Gels
  • Instabilities in soft materials
  • Fracture, adhesion, and healing in soft materials
  • Multiphysics phenomena in soft materials
  • Soft biological and bio-inspired materials
  • 3D/4D printing and fabrication of soft materials
  • Soft robotics or machines


Mechanics Of Electrochemically Active And Ferroelastic Materials
Organizers: Claudio Di Leo (Georgia Institute of Technology), Nina Orlovskaya (University of Central Florida), Siva Nadimpalli (New Jersey Institute of Technology), Shuman Xia (Georgia Institute of Technology), Matt Pharr (Texas A&M), Ali Akbari-Fakhrabadi (University of Chile)

Mechanics is one of the key factors affecting the performance of a broad range of electrochemically active materials including mixed ionic electronic conductors, thermoelectrics, fast ionic conductors, chemical sensors, and catalytic materials to name a few. This importance has become even more pronounced with the advent of novel next energy conversion and storage technologies such as all solid state lithium ion batteries and high capacity electrodes or solid oxide fuel cells and oxygen separation membranes.
This symposium will bring together experts from diverse communities including material science, mechanics, and chemistry to review current state of the art technologies and discuss open research questions and grand challenges in mechanics of electrochemically active materials.
Experimental, theoretical, and computational contributions will be encouraged and highlighted through invited talks in order to accelerate advances in our fundamental understanding of these complex materials.


Mechanics Of Nanofibers, Nanofiber Networks And Fibrous Material
Organizers: Ioannis Chasiotis (University of Illinois at Urbana-Champaign), Catalin R. Picu (Rensselaer Polytechnic Institute), Debashish Das (University of Illinois at Urbana-Champaign), Xiangfa Wu (North Dakota State University), Oksana Zholobko (North Dakota State University)

Fiber networks/mats produced by low-cost, scalable electrospinning, melt/solution-blowing, etc. present a new class of materials that find growing applications in structural nanocomposites, surface coatings, ultrafine gas/liquid filtration, biomedical engineering, wearable electronics, and energy harvesting, conversion and storage. Fibrous structures/networks are present in biological systems such as connective tissues, extracellular matrix, the cytoskeleton, etc. The deformation behavior of fiber networks is mostly non-affine and quite complex depending on several factors such as the structure of the network, bonded/non-bonded interactions, mechanical behavior, reorientation and accretion of the fibers/nanofibers. Effective design of this class of non-continuum materials is still in its infancy since many of the underlying structure-property relations are not well-understood. Evaluation of the mechanical properties of these novel nanomaterial structures are fundamental to achieving their multifunctional functions in various applications.
This symposium brings together contributions in all areas related to the multiscale physics, experimental investigations, and computational modeling of fiber networks/fibrous materials.
Topics include, but are not limited to:

  • experimental, theoretical, and computational studies of mechanical behavior of nanofibers and nanofiber networks/membranes for various applications
  • structure-properties relations in man-made and biological fibrous materials
  • constitutive modeling
  • experimental techniques used to evaluate fibrous materials
  • phenomenological characterization of biological and man-made fibrous materials
  • fracture and damage in fibrous materials


Multiscale Modeling And Mechanics Of Soft Matter And Hierarchical Materials
Organizers: Zhen Li (Clemson University), Wenjie Xia (North Dakota State University), Wenxiao Pan (University of Wisconsin-Madison), Marco Ellero (Basque Center for Applied Mathematics), Zhaoxu Meng (Clemson University), Luis Ruiz Pestana (University of Miami), Anna Tarakanova (University of Connecticut), Robbert Sinko (Northern Illinois University)

Understanding and predicting the advanced functionality of soft matter and hierarchical materials hold the key to solving some of today’s most pressing societal challenges, from sustainable energy storage to understanding biology and disease. Explaining the emergent behavior of soft matter and hierarchical materials, which arises from the complex interplay between structural morphology, architecture, interfaces, and chemical composition across time and length scales, leads to rapid development of multiscale and multiphysics approaches in recent years.
This symposium calls for interdisciplinary research on soft matter and hierarchical materials ranging from engineered to natural and living systems that display multiscale features where nano-to-marco scales and hierarchical structures play key roles in the unique properties. We are interested in a variety of material systems including but not limited to structural/infrastructural (e.g. cementitious, bituminous, clay), polymeric (e.g. nanocomposites, thin films, supramolecular networks), and biological and bioinspired (e.g. bone, wood, elastic tissue) materials. We are also interested in a wide range of approaches including the mathematical theory of coarse-graining and model reduction, scale-bridging methods applied to soft matter and hierarchical materials, data-driven approaches, as well as innovative tools for characterizing and designing multifunctional soft matter and hierarchical materials.
This symposium will bring together international researchers from a broad range of disciplines including material science, mathematics, physics, chemistry, engineering and computational science to share insights and discuss the state-of-the-art methods and applications in the emerging field of multiscale materials modeling.


Physical And Mechanical Properties Of Glassy Materials
Organizers Yue Fan (University of Michigan, Ann Arbor), Lin Li (University of Alabama), Ahmed Ettaf Elbana (University of Illinois Urbana Champaign), Xiang Cheng (University of Minnesota)

Glassy materials, as metastable systems that fall out of equilibrium, have received considerable attention because they provide a broad range of opportunities for property control, and have found applications in structural materials, damage resistance, catalysis, magnetism, and electronics. However, their disordered atomic structures and inherently non-equilibrium nature have posed grand challenges in determining structure-property relationships.
This symposium aims to promote the development of new concepts and methodologies for describing glassy materials and glass-forming supercooled liquids across a variety of systems, including metallic glasses, network glasses, polymer glasses, colloidal glasses, etc. The role of short to medium-range order, structural heterogeneities, ageing/rejuvenation phenomena, and processing history will be of particular focus.
Presentations on experimental and theoretical (including modeling and simulation) studies are encouraged. The topics of interest to this symposium include, but are not limited to, the following:

  • State-of-the-art structural characterization of non-crystalline materials, including scattering, diffraction, imaging and tomography techniques • Structure-property relations of disordered materials
  • Mechanical behavior of glasses (e.g. shear banding, fracture toughness, ductility, etc)
  • Computational modeling of glasses and supercooled liquids
  • Non-equilibrium thermodynamics and glass metastability
  • Structural evolution of glasses under the influence of temperature and mechanical loading
  • Emerging applications of glassy materials


Physics-Based Data Analytics For Characterization Of Natural and Architected Systems
Organizers: Fatemeh Pourahmadian (CU-Boulder), Bojan Guzina (University of Minnesota)

In this mini-symposium, experts in theoretical and computational techniques will discuss recent advances on data-driven inverse solutions for (a) systematic engineering of materials of extraordinary dynamic properties, and (b) imaging and characterization of chemo-physical processes in complex materials. These include, for example, multi-scale computational formulations specifically tailored to new data inversion modalities, novel topology optimization algorithms, and computational probabilistic solutions. 
Applications may be diverse. The emphasis, however, will be on fundamental principles and unified frameworks for data-driven solutions.


Random And Fractal Media
Organizers: Martin Ostoja-Starzewski (University of Illinois at Urbana-Champaign), Johann Guilleminot (Duke University)

This mini-symposium is intended as a forum to report on recent developments in mechanics and physics of random and fractal media. Subjects to be covered will include: geometric models of material microstructures, random processes and fields, statistical continuum and bounding methods for transport and mechanical properties, random field models and stochastic finite elements, multiscale and fractal models, stochastic fracture/damage, stochastic waves in random/fractal media.


Recent Developments And Applications Of Fractional Calculus To The Mechanics Of Solids
Organizers: Fabio Semperlotti (Purdue University), George Karniadakis (Brown University)

This symposium will provide an interdisciplinary platform for researchers in different areas of science, engineering, and applied mathematics to share their latest results and findings in the broader area of fractional calculus applied to the design and simulation of structures and materials.
Examples of possible topics include, but are not limited to, fractional continuum mechanics, field transport theory, nonlocal and fractal materials, multifunctional and multiphysics materials, remote sensing and inverse problems, numerical methods for the solution of fractional order equations.
Contributions concerning the practical application of these theoretical and numerical tools to real-world problems are particularly welcome. Problems of interest can be drawn from a number of disciplines in which predictive science is an enabling technology. Examples can range from the design of mechanical and aerospace structures and materials, to the design of resilient civil infrastructures, to the ability to predict the dynamic response in non-deterministic media (e.g. propagation of seismic waves), all the way to biomedical applications and biological materials. Studies focusing on the validation of fractional order models and of their performance assessment via a series of controlled experiments or via large scale data collection are highly encouraged.
In an effort to promote a strongly interdisciplinary environment fostering exchange of ideas and possibly facilitating new collaborations between experts in different fields, we invite submissions from all fields of science, engineering, and applied mathematics covering any combination of analytical, numerical, and experimental work.


Soft Fluid-Solid And Fluid-Solid Composite Contacts
Organizers: Alison Dunn (University of Illinois at Urbana-Champaign), Shelby B. Hutchens (University of Illinois at Urbana-Champaign)

Soft contacting surfaces require unique considerations in solid mechanics. In addition, many soft solids include a fluid component or phase, or fluid is present within the contact. This provides a challenging system in which both soft solid mechanics and fluid mechanics must be considered to describe the response and performance. While these problems may overlap somewhat with those encountered in “fluid-solid interaction,” we specifically aim to showcase contact systems in which the solids are extremely compliant (i.e., elastomers, elastomer gels, or hydrogels) and the fluids experience static or dynamic conditions of pressurization, diffusion, confinement, capillarity, or shear. This complements several facets of mechanics presented at SES 2019, including hydrogel fatigue, soft silicone fracture mechanics, and hydrogel dehydration.


Structure And Motion Of Material Interfaces
Organizers: Doron Shilo (Technion, Israel), Eilon Faran (Technion, Israel)

This symposium invites multidisciplinary works on the structure of material interfaces and their dynamic properties. Types of material interfaces include grain boundaries, twin boundaries (including ferroelectric and ferroelastic domain walls), and phase boundaries. Microstructural studies may include methods such as atomistic models, topological models, and analyses based on electron microscopy observations. Studies of interface motion may touch on the following topics: topologically based mechanisms of motion, atomistic simulations of interface motion, in-situ and ex-situ microstructural visualization during thermo/electro/magneto-mechanical experiments, measured and calculated barriers and kinetic relations for interface motion. Works that relate the dynamics of discrete interfaces to the overall microstructure evolution and macroscopic response are also encouraged. During the symposium talks, an effort will be placed on exploring the relations between the interface structure, the barriers for its motion, the mechanisms of motion, and the kinetic laws for the interface motion.


Understanding The Link Between Composition, Structure, And Response Of Infrastructure Materials
Organizers: Christian Hoover (Arizona State University), Mathieu Bauchy (University of California, Los Angeles), Jay Oswald (Arizona State University)

The mechanical and physical properties of materials are complex functions of their chemical composition and microstructure across a potentially vast range of length scales, e.g., ranging from crystalline texture to the atomic scale. To address this complexity, researchers have developed a rich set of computational, analytical, and experimental tools to explore composition-structure-property relations in materials.
In this symposium, we discuss recent breakthroughs for interdisciplinary research on materials at the interface of physics, chemistry, material science, and solid mechanics. We are interested in a wide range of engineering and infrastructure materials including but not limited to cementitious materials, geo-materials, glasses, polymers, ceramics, and composites.
Physical properties of interest may be stiffness, strength, creep, heat and mass transport, fracture toughness, and permeability. Computational methods of interest include ab-initio, classical and semi-classical force-field molecular dynamics, Monte Carlo methods, potential of mean-force, machine learning / data driven modeling and coarse-grained mesoscale modeling. Relevant analytical approaches include micro-mechanics-based homogenization techniques and continuum mechanics approaches.
We encourage submissions related to experimental techniques focussing on materials synthesis and characterization, for example neutron and X-ray scattering techniques, tomography, nanoindentation, scratching, scanning probe microscopy and nuclear magnetic resonance. Approaches for combining experimental/computational efforts (e.g. verification, validation and calibration) are encouraged.




Chairs: Yong Zhou (North Carolina State University), Nikhil Admal (University of Illinois at Urbana-Champaign)


A Decade Of Innovations In The Multiscale Modeling Of Materials
Organizers: Ellad Tadmor (University of Minnesota), Ron Miller (Carleton University)

Understanding the role of atomic-scale processes in meso- and macroscopic material behaviour presents unique multiscale modeling challenges. This minisymposium invites discussion of progress made in the last decade in this area, specifically focussing on the key innovations in the field, as well as exciting new research directions on the horizon.
We encourage participation from researchers engaged in all aspects of multiscale modeling and simulation of materials, with a particular emphasis on breakthrough research. This includes both the development of new techniques, as well as the innovative application of established coupling or sequential methods in both space and time, to explore the mechanics and physics of materials across scales.


Coupling Of Models, Algorithms, And Experiments In Nanomechanics
Organizers: Douglas Stauffer (Bruker Nano), Izabela Szlufarska (University of Wisconsin - Madison)

Nanomechanical testing is commonly employed to determine the mechanical behavior of small volumes of material, especially in the case of surface, thin films, MEMS devices, or irradiated materials. Coupling of advanced experimental and modeling tools provides a powerful approach to discovery and understanding of mechanical phenomena at these scales. In addition, recent advances in instrumentation (data acquisition and control) have facilitated ever higher-throughput generation which requires new models and algorithms to extract the relevant properties of interest.
In this symposium, we explore recent developments and challenges in regards to gaining mechanistic insight from models for understanding experimental results, experimental validation of models, and the generation of new models based on experimental work. Additional topics considered:

  • Automated analyses of experimental data, including clustering, outlier removal, and correlations to bulk properties.
  • Advances in design and application of nanomechanical test techniques including indentation, AFM, micropillar compression, microtension, beam bending, etc.
  • Predictive modeling of mechanical behavior at small length scales.
  • Machine learning and predictive models for data-informed experimental testing and design.


Deformation And Failure Of Nanostructured Materials
Organizers: Xiaoyan Li (Tsinghua University, China), Wendy Gu (Stanford University)

This symposium will cover the mechanical behaviors (mainly deformation and failure) of current and emerging nanostructured materials. Nanostructured materials have excellent mechanical performance and multifunctional properties, which can be tuned through both structural architecture and material size effects. These materials are of intense interest as lightweight load bearing structures and in functional devices for use in extreme conditions of stress, temperature, pressure and chemical reactivity such as in space and within living matter.
This symposium will include the fundamental mechanical behaviors (mainly deformation and failure) of emerging nanostructured materials. Topics of interest include nanostructured metals/alloys (such as nanocrystalline, nanotwinned metals, and high entropy alloys), nano-architected materials (such as mechanical metamaterials at nanoscale), and low-dimensional materials.
We will welcome submissions of experiments, computational and theoretical studies across length scales and time scales.


First Principles Simulations And Their Applications To The Mechanics Of Materials
Organizers: Amartya Banerjee (University of California, Los Angeles), Phanish Suryanaryana (Georgia Institute of Technology), Swarnava Ghosh (California Institute of Technology)

In recent years, first principles (i.e., quantum mechanical) simulations have become increasingly popular among mechanicians to accurately model the behavior of materials at the atomistic and electronic scales. These methods allow various multi-physics phenomena to be modeled seamlessly and they hold the promise of enabling mechanicians to understand the atomic-constituent-dependence of constitutive relations.
This symposium aims to bring together researchers working on various aspects of first principles simulation methods, as well as those involved with the application of such methods to problems in the mechanics of materials. Topics of interest to this symposium include but are not limited to recent progress in:

  • formulation and implementation of novel first principles methods.
  • applications of first principles methods to problems in the mechanics of materials (such as the study of the core structure of defects)
  • usage of first principles methods to the study of phenomena that couple mechanical and electronic/optical/magnetic properties in materials.
  • formulation and implementation of techniques that couple first principles methods with models operating at higher spatio-temporal scales.


Generalized Continuum Theories For Nano- And Micro-Structured Materials
Organizers: Anil Misra (University of Kansas), Ranganathan Parthasarathy (Tennessee State University), Zachariah Rueger (Kansas City National Security Campus - Department of Energy), Lizhi Ouyang (Tennessee State University)

Nano- and micro-structured materials exhibit non-classical mechanical effects such as wave dispersion and size effects on material strength, arising due to multiple reasons such as discreteness of the material, thermal fluctuations, entropy evolution, and quantum effects. Non-classical effects are important in several areas such as metallurgy, polymer mechanics, elastic strain engineering of optical or electromagnetic properties, additive manufacturing, and geophysics, encompassing several spatial scales ranging from atomic to tens of meter. Despite the advances in this area of research, the development of generalized continuum theories which show a physically meaningful connection to the discrete scale continues to be a challenge.
We invite research on generalized continuum mechanics models, nonlocal theories, surface theories, higher order theories of all types. Topics within the scope of interest include but are not limited to theoretical, numerical, or experimental work on:

  • Atomistic to continuum bridging using deterministic or non-deterministic discrete models
  • Finite temperature molecular dynamics to continuum coupling
  • Size effects in mechanical behavior at different scales
  • Non-classical effects in additively manufactured lattice structures
  • Coupling between mechanical and electromagnetic properties •
  • Higher order crystal plasticity modeling • Strain gradient plasticity
  • Nanomechanical behavior resulting from phase transitions
  • Exploiting non-classical effects in metamaterials for target property modulation
  • Protein nanomechanics • Granular mechanics and associated continuum theories
  • Cellular nanomechanics as related to structure-property relationships of biological materials
  • Improvements in experimental efforts for mechanical characterization at multiple scales


Grain Boundary And Interfacial Mechanics
Organizers: Nikhil Chandra Admal (University of Illinois Urbana-Champaign), Brandon Runnels (University of Colorado Colorado Springs), Vinamra Agarwal (Auburn University)

Recent advances in manufacturing of nanocrystalline materials and materials characterization have reinforced the importance of grain boundaries in engineering materials for extreme thermomechanical environments. In-situ experimental characterization of grain boundary dislocations (disconnections), phase-like interfacial structures (complexions) at grain boundaries, and atomistic simulations have clearly demonstrated the need to go beyond the traditional capillarity-driven model for grain boundary motion, and characterize the carriers of grain boundary plasticity. At the same time, collective phenomena such as dynamic recrystallization, abnormal grain growth and the inverse Hall--Petch effect necessitate the development of mesoscale models for grain boundaries.
The goal of this symposium is to bring the grain boundary community together to discuss the mechanics behind grain microstructure evolution under extreme thermomechanical loads.
The topics of this symposium include, but not limited to, the following:

  • Interaction between grain boundaries and other defects such as dislocations and vacancies
  • Experimental and atomistic characterization of disconnections and grain boundary motion
  • Mesoscale modeling of microstructure evolution and grain boundary plasticity
  • Mechanisms of grain boundary evolution at the nanoscale using first principles
  • Statistical mechanics and energetics of grain boundary microstates
  • Machine learning techniques in exploring grain boundary microstates.


In-Situ And Operando Nanomechanics
Organizers: Sanjit Bhowmick (Bruker), Eric Hintsala (Bruker), Shen Dillon (University of Illinois at Urbana-Champaign)

Nanomechanical testing inside an electron microscope provides an opportunity for high resolution and real-time imaging of the dynamics of deformation in materials. In-situ testing enables the study of micro- and nano-scale specimens containing small numbers of defects for fundamental studies, evaluation of failure mechanisms in constrained specimens like thin films and nanoparticles, and more. Recent advances in the testing instruments also deliver unprecedented insights of elasticity, plasticity, fatigue, and fracture under various operando conditions such as high temperature, cryogenic temperature, irradiation, electrical and magnetic fields, gas, liquid and humidity.
This symposium will focus on developments in experimental techniques and key findings that aid in the understanding of deformation mechanisms of small-scale samples. The symposium will also include imaging and analytical techniques correlating microstructures, defects, interfaces and strain fields with mechanical properties.


Interatomic Models In Materials Simulations: Theory, Standards, Infrastructure, And Applications
Organizers: Ellad Tadmor (University of Minnesota), Ryan Elliott (University of Minnesota), George Karypis (University of Minnesota), Mark Transtrum (Brigham Young University)

Atomistic (nano- and multi-scale) simulations in engineering and materials science play a key role in realistic scientific and industrial applications. The interactions between the atoms in these simulations are typically characterized by physics-based or machine learning interatomic models (IMs) fitted to reproduce electronic structure and/or experimental results. A rich and dynamic field is evolving around the development and usage of IMs.
This minisymposium will bring together researchers working in various areas of IM science including model order reduction, regression, uncertainty quantification, machine learning, Bayesian statistics, information geometry, model assessment and selection, reproducibility and workflow, software engineering, APIs and standards, cyberinfrastructures, and other related areas.


Mechanical Behavior Of Nanocomposite, Nanoporous, And Nanostructured Materials
Organizers: Antonia Antoniou (Georgia Institute of Technology), Andrea M. Hodge (University of Southern California), Nathan A. Mara (University of Minnesota-Twin Cities)

This symposium focuses on understanding mechanical behavior of materials at diminished length scales where microstructural features such as grain boundaries, bi-material interfaces, free surfaces or microstructural/compositional gradients dominate the overall response. Experiments and numerical studies characterizing mechanical behavior and uncovering deformation mechanisms are of interest. Studies that investigate mechanical behavior coupled with other properties, e.g. electrical, thermal etc. for use in engineering applications are encouraged.
Proposed topics:

  • Effect of atomic-level interface structure and chemistry on deformation mechanisms
  • Mechanical behavior (strength, stiffness, fracture toughness, etc.) in multiphase systems, such as nanolaminates, nanoporous materials, and nanoparticle-based composites
  • Mechanical behavior of nanomaterials containing designed boundaries (e.g. solute stabilization, grain boundary complexion formation, duplex and gradient nanostructures)
  • Modeling of deformation processes as they relate to interface and surface-driven mechanical behavior
  • Multifunctional structural nanomaterials with enhanced thermal, electrical or electrochemical performance (heat transfer, chemical stability) for catalysis, battery and other applications.


Mechanically-Coupled And Surface-Enabled Functionality In 2D Materials
Organizers: Qing Tu (Texas A&M University), SungWoo Nam (Department of Mechanical Science and Engineering, University of Illinois at Urbana-Champaign), Baoxing Xu (Department of Mechanical and Aerospace Engineering, University of Virginia)

The mechanical behaviors of two-dimensional (2D) materials are quite different from those of continuum mechanical systems due to the extreme thickness and the mitigation effects of surfaces and interfaces. These atomically-thin materials can sustain large elastic strain on the order of a few percent without undergoing inelastic relaxation and their mechanical properties can largely be tuned via surfaces and interfaces of both 2D materials and their substrates. Furthermore, the mechanical behavior modifies the structure-property relationship in 2D materials, leading to mechanically coupled, new physico-chemical properties, such as electrical, optical, thermal, magnetic and catalytic properties, etc.
These features together open unprecedented opportunities to 1) create hierarchical, complex mechanical deformations and architectures, 2) to control local and global mechanical stress through surface and interface engineering, and 3) to tailor the physico-chemical properties for new functionalities in atomically-thin materials.
This symposium will cover fundamental mechanics theory and modeling of atomically-thin materials, including modeling and predicting/controlling strain-coupled behavior in 2D materials, developing novel computational methodologies and designing devices/structures with new functionality by controlled mechanics.
The symposium will discuss advancements in processing and synthetic strategies to achieve deterministic creation of hierarchical heterostructure and architecture that can benefit from strain coupling.
The symposium will focus on understanding the impact of mechanical coupling on modifying physico-chemical properties of 2D materials and the role of surface and interfaces in these mechanically coupled functionalities. Interdisciplinary topics related to mechanics, physics and materials science and engineering will be presented by invited speakers in order to promote the development of these new forms of materials and applications. Interdisciplinary presentations from invited speakers are also aimed to motivate synergistic research collaborations in the field of mechanically coupled and surface enabled functionality of deformable and strained atomically-thin materials.
Topics addressed in this symposium will include (but not limited to):

  • Computational and theoretical approaches to model/predict mechanically-coupled functionality or design mechanical deformation structures to achieve new functionality in 2D materials
  • Surface and interfacial mechanics in 2D materials, including tribology, adhesion, intercalation, and encapsulation, and new functionality associated, e.g., catalytic reaction, super lubricity, pseudomagnetism, etc.
  • Surface and interface engineering to achieve controllable mechanical deformation (e.g., wrinkling, folding, buckling, crumpling, assembly, etc.) and/or mechanically coupled functionalities (e.g., symmetry breaking, piezoelectricity, chemical reactivity, light emission, conductivity, etc.)
  • Experimental characterization and theoretical understanding of the stress/strain transfer through the surfaces and interfaces in 2D materials and heterostructures
  • Mechanically-coupled physico-chemical properties and transport phenomena in 2D materials, including thermal, electrical, optical, magnetic, catalytic and hybrid properties
  • Flexible, stretchable and shape adaptive devices based on 2D materials
  • 3D architectural structures and composites enabled by 2D materials
  • Design of bulk form of 2D materials with the emergence of various advanced manufacturing techniques
  • Mechanics in manufacturing of 2D materials towards scalable strain engineered applications
  • Emerging applications of strain-engineered 2D materials and heterostructures in clean energy, environmental protection, advanced healthcare, sensing, etc.



Chairs: Nanshu Lu (University of Texas at Austin), Shengqiang Cai (University of California, San Diego)


3D Micro/Nano-Architectures Based On Low-Dimensional Materials
Organizers: Zhao Qin (Syracuse University), Weinan Xu (University of Akron)

Low-dimensional materials have been at the forefront of materials research in recent years, and widely used in the fabrication of functional devices due to their excellent electrical and optical properties, as well as their atomically well-defined nanostructures and reliable mechanics. Most studies utilize the materials in their original planar or fiber form, which do not take full advantage of the ultrahigh in-plane strength, lightweight and superior bending flexibility of those materials.
An emerging direction in materials research is to identify reliable way to transform the low-dimensional sheets/tubes/points, produced from chemical growth, into well-defined 3D micro/nano-architectures, which provide an ideal platform for many applications including metamaterials with advanced mechanics, bioelectronics, biosensing and energy storage.
This minisymposium will collect the cutting edge research and discuss ways to model, design, fabricate, and control 3D micro/nano structures based on low-dimensional building blocks.


Advances In Polymer Modeling And Simulations
Organizers: Jihong Ma (University of Vermont), Traian Dumitrica (University of Minnesota)

The production of newer classes of polymers, such as polymerized ionic liquids and nanoporous polymers, opened up exciting possibilities for various applications including electrochemical energy generation and storage, water purification, sensing and releasing biological molecules, development of light-weight structures. Modeling these complex architectures presents significant challenges related for instance to the system size, accuracy of the classical and coarse-grained potentials, presence of multiscale effects, and critical discrepancies with experiment.
This mini-symposium aims to bring together scientists and engineers working at the forefront of the modeling and simulation to exchange and share their experiences and recent research results.


Functional Soft Composites - Design, Mechanics, And Manufacturing
Organizers: Ruike (Renee) Zhao, (Ohio State University), H. Jerry Qi (Georgia Institute of Technology)

Functional soft composite materials are recently becoming an emerging field in scientific research and engineering innovation. They are distinct from traditional materials and composites, due to their unprecedented potential of wide range property tuning, large shape changing, and self-adaptivity. By integrating soft matrix with functional ingredients such as stimuli-responsive particles and mechanophores, soft composites could enable multifunctional material and structural systems with for applications in soft actuators, soft robotics, flexible electronics, metamaterials, and biomedical engineering. The development of functional soft composites synergistically integrates design, mechanics, and manufacturing.
This symposium will represent the emerging and recent advances in soft composite materials with a focus on the design concept, design method, modeling and simulation, and fabrication, as well as their novel engineering applications across a wide range of engineering fields. Specific topics of interest include, but are not limited to:

  • Design concept and methodology of soft composites with novel properties and functionalities
  • Constitutive modeling of soft composite material behavior
  • Advanced manufacturing of soft composites
  • Multiphysics coupling of soft composites and their applications
  • Stimuli-responsive soft composites and their applications


Liquid Metal Materials & Structures
Organizers: Pu Zhang (SUNY Binghamton), Michael Bartlett (Iowa State University), Wanliang Shan (Syracuse University)

Liquid metals (including low melting point alloys) are an emerging class of materials with low melting points, excellent thermal and electrical conductivity, extreme deformability, tunable rigidity, and self-healing behaviors. Due to these characteristics, liquid metals have been employed to develop stretchable electronics, active robotic materials, rigidity tunable materials and devices, reconfigurable metamaterials, among others.
This minisymposium calls for abstracts in the broad area of liquid metals such as functional materials, mechanical and physical properties, manufacturing methods, and novel applications. Specific topics of interest include, but are not limited to:

  • Liquid metals for soft robotics, e.g. active material, tunable rigidity material
  • Fabrication and characteristics of liquid metal-based flexible electronics, bioelectronics, and sensors
  • Mechanical behaviors of liquid metal materials and structures
  • Thermal and electrical properties of liquid metal materials
  • Modeling and simulation of liquid metal materials
  • 3D printing of liquid metals
  • Novel hybrid materials, metamaterials, and device based on liquid metals
  • Synthesis and characterization of liquid metal nanomaterials


Mechanics And Physics Of Soft Materials
Organizers: Yuhang Hu (Georgia Tech), Stephan Rudykh (University of Wisconsin-Madison), Xuanhe Zhao (Massachusetts Institute of Technology), Oscar Lopez-Pamies (University of Illinois at Urbana-Champaign)

Soft material is an increasingly active field of research driving science and technology into new exciting directions. Large deformations coupled with various multiphysics phenomena and instabilities at different length scales open an immensely rich research arena. This offers unique opportunities to develop multifunctional materials and devices with novel properties, through the targeted design of material composition and microstructural layout. Moreover, soft materials represent essential components in biological tissues, a topic of extreme interest for bio-medical applications.
This mini-symposium will address recent experimental, computational, theoretical and manufacturing advances in this direction.
Topics of particular interest include:

  • Electroactive and magnetoactive elastomers (EAP, DE, MRE, MAE, IPMC)
  • Hydrogels and other soft wet materials
  • Liquid crystal elastomers
  • Shape-memory and light-sensitive polymers
  • Instabilities in soft materials
  • Fracture, fatigue, friction and adhesion of soft materials
  • Soft biological and bio-inspired materials
  • Multiphysics phenomena in soft materials
  • Wave propagation and dynamics of soft materials
  • 3D/4D printing and fabrication of soft materials
  • Soft Robotics or Machines
  • Mechanical Metamaterials
  • Machine learning for soft material and system design


Mechanics Of Active And Time Dependent Polymer Networks
Organizers: Franck Vernerey (University of Colorado, Boulder), Shengqiang Cai (University of California, San Diego)

The symposium will focus on theoretical and modeling advances to establish a link between polymer structure and response, and novel experimental techniques that can help elucidate the underlying mechanisms of active and transient polymers.
These may include for instance, dynamic polymers such as vitrimers, active polymers as seen in actin-myosin networks, or liquid crystal elastomers with active or trensient connections.


Modeling And Computational Methods For Polymer Networks And Gels
Organizers: Noy Cohen (Technion - Israel Institute of Technology), Shawn Chester (New Jersey Institute of Technology)

Polymers and gels are used in many applications such as actuators, medical devices, drug delivery systems, tissue engineering, and hydrogel-based actuators.
This mini symposium aims to:

  • present and discuss the latest advances in the modeling of polymeric networks and gels,
  • present novel computational methods and numerical techniques that can be used to simulate the response of polymer networks and gels
  • forge interactions among active researchers from the field of applied mechanics, biomedical engineering, and materials science and engineering. We welcome theoretical and computational talks that contribute to the field.


Robotic Materials: Leveraging Mechanics & Soft Materials To Achieve Unprecedented Capabilities
Organizers: Maurizio Chiaramonte (Facebook Reality Labs), Katia Bertoldi (Harvard University), Chiara Daraio (Caltech), Yigit Menguc (Facebook Reality Labs)

The goal of this mini-symposium is to apply the lens of mechanics to robotics material research. The latter is a rapidly emerging area of research where design of novel multi-functional materials (harnessing material properties and/or meta-structures) enables unprecedented capabilities and robustness (i.e. low likelihood of failure) of soft autonomous machines. Soft robots have the ability to drastically impact many fields of engineering and science alike, with applications ranging from space exploration to medicine. Examples of the many capabilities of soft robots include being able to robustly interact with unstructured environments thanks to high compliance, withstand crushing hydrostatic pressures while carrying out tasks, crawl through arbitrarily small and tortuous cavities via shape morphing, provide (in the form of actuated fabrics) non-obstructive exoskeleta, as well as artificial muscles. Such capabilities are achieved through a tight integration of material compliance, sensing, and actuation.
The mini-symposium aims at bringing together researchers addressing the fundamental challenges in robotics (namely power, actuation, sensing, control, and structure) by designing novel materials and structures, exploiting multiple-physics and leveraging properties at disparate length and time scales. In addition, an objective of the mini-symposium is to explore structured and rational design methodologies for replication and generalization of specific capabilities. Researchers in the field are encouraged to partake in this symposium, where potential research topics are:

  • Functional materials
  • Metamaterials
  • Multi-physics actuations
  • Structural instabilities as actuation mechanism
  • Biomimetic/bio-inspired soft materials & structures
  • Computational modeling, design optimization, and controls


Chairs: Victor Barocas (University of Minnesota), Patrick Alford (University of Minnesota)


Complementary Experimental / Computational Approaches To Biomechanics
Organizers: Victor Barocas (University of Minnesota), Micheal Sacks (University of Texas at Austin)

As the field of biomechanics has expanded to materials and structures at all length scales exhibiting ever-higher degrees of geometric, compositional, and organizational complexity, the simple traditional mechanical experiments have become progressively more difficult to perform and analyze.
In response, the biomechanics community has complemented the experiments with improved computational methods. These methods range from advanced image processing, allowing more accurate measurement of deformation during an experiment, to novel theoretical models that can incorporate new types of information obtained during an experiment, to inverse finite element methods.
In this symposium, we welcome all research at the interface between biomechanical experiments and computational methods, with the goal of driving new understanding of the complex mechanical phenomena underlying biological and physiological function.
As the field of biomechanics has expanded to materials and structures at all length scales exhibiting ever-higher degrees of geometric, compositional, and organizational complexity, the simple traditional mechanical experiments have become progressively more difficult to perform and analyze. In response, the biomechanics community has complemented the experiments with improved computational methods. These methods range from advanced image processing, allowing more accurate measurement of deformation during an experiment, to novel theoretical models that can incorporate new types of information obtained during an experiment, to inverse finite element methods.
In this symposium, we welcome all research at the interface between biomechanical experiments and computational methods, with the goal of driving new understanding of the complex mechanical phenomena underlying biological and physiological function.


Cellular Mechanics
Organizers: Patrick Alford (University of Minnesota), David Odde (University of Minnesota), Alireza Sarvestani (Mercer University)

The focus of this symposium will be the study of cell mechanics, ranging in scale from cytoskeletal and subcellular mechanics to whole-cell mechanics and mechanics of cell-cell interactions. We welcome both experimental and computational studies, and studies that combine both experimental and computational approaches will be given special consideration. Both novel approaches and extensions of existing approaches are encouraged.
Note: This mini-symposium is focused on the mechanics of cells. Studies that are focused on cellular processes and signaling must include significant mechanical analyses as well.


Multiscale Modeling Of Molecular, Cellular, Tissue, And Organ Mechanics
Organizers: Ying Li (University of Connecticut), George Lykotrafitis (University of Connecticut), Zhangli Peng (University of Illinois, Chicago)

Mechanics plays a significant role in biological systems. For instance, cells actively sense and respond to the material properties of their local environment. In addition to its chemistry, applied forces, geometry and the viscoelasticity of the extracellular matrix are also important factors in multiple biological processes and pathologies. However, the inherent complexity of biological systems is a substantial barrier to the understanding of their behavior. Moreover, multiple spatial and temporal scales are typically involved due to the hierarchical structures and nested processes in biological systems. These complexities bring challenges and opportunities to experimental, theoretical, and computational investigations of molecular, cellular, tissue and organ mechanics and require close collaboration among scientists from multiple disciplines.
The goal of this symposium is to bring together researchers with a variety of backgrounds to exchange ideas, identify and address grand challenges, and to initiate new areas of research. We propose four major themes:

  • Organ mechanics: computational modeling of organs, experimental measurement of organ properties, structure-function relations of organs, biological and disease applications of organ mechanics, heart valve disease and intervention.
  • Tissue mechanics: constitutive modeling of biological tissues, experimental measurement of tissue properties, tissue remodeling, structure-function relations of tissues, numerical simulations in tissue mechanics, biological and disease applications of tissue mechanics, biomechanics of cartilage and arteries.
  • Cellular and subcellular mechanics: Cell adhesion, cell motility, and cell force generation in single and cluster of cells including cell collectives. Includes the mechanical properties of single cells, constitutive and computational modeling of cells, single-cell mechanical testing, cell membrane mechanics, cell cytoskeleton, cell-extracellular matrix interactions, mechanotransduction in cells, morphogenesis, intracellular mechanics, multi-cellular structure formation and organization, cellular uptake of nanoparticles, mechanics of actin, microtubule, and intermediate filament networks, mechanics of nucleus, mechanics of cilia.
  • Molecular mechanics: Deformation of DNA, RNA and proteins, analytical and computational analysis of biomolecules, molecular mechanisms of mechanosensing and mechanotransduction, cell adhesion molecules, mechanics of subcellular structures and organelles, mechanics of endocytosis, viral budding, viral packaging, self-assembly of nanoparticles mediated by organic molecules, mechanosensitive channels.



Chairs: Markus Buehler (Massachusetts Institute of Technology), Kai Guo (Massachusetts Institute of Technology)


Machine Learning Approaches To Understanding Bulk Metallic Glasses And Other Amorphous Materials
Organizer: Corey OHern (Yale University)

Machine learning approaches offer promising methods to accelerate the discovery of new materials with tunable properties.
This session will focus on machine learning approaches to design novel bulk metallic glasses and other glass-forming materials. To date, the materials community has tested the glass-forming ability of only an extremely small fraction of the possible metal alloys. Coupling high-throughput fabrication and characterization techniques with machine learning approaches will enable researchers to explore an unprecedentedly large composition space of metallic glasses.
This focus session seeks abstracts from interdisciplinary researchers in physics, materials science and engineering covering experimental and computational design of new glass-formers with optimized properties, structure-property relationships, and high-throughput fabrication and characterization techniques.
We believe that this focus session will catalyze new collaborations aimed at the discovery of new metallic glasses.


Machine-Learning-Driven Design Of Biological And Bio-Inspired Materials
Organizers: Markus Buehler (MIT), Kai Guo (MIT)

Nature's materials from animals and plants achieve outstanding performance for specific aims due to their hierarchical structures and nanomechanics. Recent breakthroughs in machine learning (ML) offer potential pathways to outperform nature's design by exploring and exploiting design spaces beyond the scope of the training dataset obtained from measurement of existing biological materials. A data-driven design model based on ML algorithms can discover not only data representation but also the mapping from representation to targeted properties by itself, which is fundamentally different from conventional design paradigms that rely on domain knowledge of intrinsic mechanisms.
This symposium aims at providing an opportunity for scientists to discuss the integration of advanced ML techniques and design approaches for biological and bio-inspired materials. Research topics of particular interest include ML-driven design of de novo proteins and protein-based materials, biopolymers, bio-inspired composites and hierarchical materials, etc.


Solving Engineering Problems By Integrating Low-Cost Synthetic Data In Machine Learning
Organizers: Ming Dao (MIT), Paris Perdikaris (University of Pennsylvania)

Recent developments of data-driven methods, such as deep neural networks (DNNs), enable us to solve many engineering problems that could not be tackled solely through traditional methods. However, data-driven methods usually require a large amount of data to train the neural network model, and in many engineering problems, it is often difficult to obtain necessary data of high accuracy. In these situations, it is advantageous to utilize synthetic data derived from simulations of physical models. For example, various data-fusion methods, multi-fidelity methods, physics-informed methods etc. can be used for taking advantage of the low-cost synthetic/simulation data in solving real-world problems.
The applications include but not limited to: digital twin, new materials development, new drug discovery, image/video analysis, healthcare, mechanics of materials, biomaterials, blood rheology, and cell mechanics.
The mini-symposium calls for both the latest theoretical developments and engineering/practical applications taking advantage of low-cost synthetic data.


Theory And Applications Of Deep Learning In Engineering Science
Organizers: Shaoping Xiao (University of Iowa), Albert Ratner (University of Iowa)

Riding with the current wave of Artificial Intelligence (AI), many engineers and scientists have adopted machine learning and deep learning as a powerful tool in various engineering disciplines, including biomechanics, materials science, control, robotics, and more. Deep learning, utilizing artificial neural networks, is the most effective, supervised, time and cost-efficient machine learning approach. It has been successfully used in image classification, face recognition, language translation, etc.
This symposium aims to bring researchers together to share the insights of AI in current research projects and promote the applications of deep learning in engineering science disciplines.
The topics of interest to this symposium include, but are not limited to, the following:

  • Introduction to the state-of-the-art deep learning methods: artificial neural network, convolutional neural network, recurrent neural network, etc.
  • Deep learning in engineering design optimization
  • Image processing and detection in biomedical research
  • Data-driven modeling and simulation in materials science and mechanics
  • Robotics, control, and automation enhanced via deep learning
  • Applications of deep learning in virtual reality, transportation, combustion, and other engineering science disciplines
  • Other machine learning and AI approaches in engineering problem solving


Chairs: Jerry Qi (Georgia Institute of Technology), Katie Matlack (University of Illinois at Urbana Champaign)


3D/4D Printing And Advanced Manufacturing Of Materials And Structures
Organizers: Kai Yu (University of Colorado Denver), Lijie Grace Zhang (The George Washington University), Sung Hoon Kang (Johns Hopkins University). Howon Lee (Rutgers University), Nikolaos Michailidis (Texas A&M Engineering Experiment Station, Aristotle University of Thessaloniki), Satish Bukkapatnam (Texas A&M University), Dimitris Lagoudas (Texas A&M University), Jordan R. Raney (University of Pennsylvania), Qiming Wang (University of Southern California)

Advanced manufacturing techniques offer unique opportunities to explore novel properties and mechanics of materials and structures. As a prominent example, 3D printing can spatially control material constituents at high resolution with low cost and essentially no restriction on the geometric complexity.
In addition, as an emerging bio-manufacturing technique, 3D printing offers great precision and control of the internal architecture and outer shape of a scaffold, allowing for close recapitulation of complicated structures found in biological tissue/organ.
The symposium calls for abstracts from research efforts related to i) materials and structures with novel mechanical properties/functionalities realized via 3D printing and advanced manufacturing techniques, and ii) design of innovative printing systems and printable biomaterials for the various biomedical applications.
We invite presentations on fundamental studies of 3D printing and advanced manufacturing, including both computational and experimental, leading to new material properties and geometries. Computational and analytical challenges in simulating the mechanical response and failure of materials with specific manufacturing signature will also be a focus.
Specific topics of interest include, but are not limited to:,

  • Emerging 3D/4D printing and other advanced manufacturing techniques, such as micromachining,
  • Applications of new sensor technologies, artificial intelligence, and machine learning in 3D printing and advanced manufacturing for assessing component quality and process optimization,
  • 3D printed materials and composites with novel properties and multi-functionalities, such as self-healing, reprocessing and recycling, unique acoustic properties, negative Poisson’s ratio, negative stiffness, 3D/4D printed active materials and composites with programmable deformation or/and active modulation of physical properties,
  • Design theory or methodology, constitutive modeling, and computational simulation for 3D/4D printed materials and structures,
  • Mechanical response, micromechanics, instabilities, and fracture of materials and structures fabricated by 3D printing and advanced manufacturing,
  • 3D/4D printing for tissue and organ regeneration ,
  • Design and applications of advanced printable biomaterials ,
  • Simulation of material, cell-material interaction or 3D tissue constructs,
  • 3D/4D printed tissue and organ models,
  • 3D/4D printing for health.


Controlling Wave Propagation Via Architected Structures And Metamaterials: Theory, Simulation, Fabrication, And Experimentation
Organizers: Fabio Semperlotti (Purdue University), Guoliang Huang (University of Missouri), Jian Li (Massachusetts Institute of Technology), Stephan Rudykh (University of Wisconsin, Madison), Kathryn Matlack (University of Illinois Urbana-Champaign), Dennis M. Kochmann (ETH Zurich), Ramathasan Thevamaran (University of Wisconsin-Madison)

This mini-symposium aims to bring together experts to discuss latest findings in computational, theoretical, experimental, and fabrication aspects in the broad area of mechanical wave propagation and its control via architected structures and metamaterials.
The central theme of the symposium focuses around tunable metamaterials with unique and unusual properties, and the advancement of fabrication methods for realization of acoustic/elastic metamaterials at different length scales. Contributions concerning the application of additive manufacturing to enable the fabrication of structured materials with unique properties are also strongly encouraged. We hope the symposium will facilitate discussion on potential engineering applications.
Topics of interest include (but not limited to): wave propagation in soft materials, acoustic-elastic metamaterials, phononic crystals and cloaking materials, homogenization and topological optimization of acoustic-elastic metamaterials, non-reciprocal and directional waves, wave controlling via multiphysics phenomena.


Heterogeneous And Architectured Metallic Materials: Mechanics And Manufacturing
Organizers: Yujie Wei (Institute of Mechanics, Chinese Academy of Sciences), Ting Zhu (Georgia Institute of Technology), Xiaoyan Li (Tsinghua University, Beijing)

We propose a symposium on "Heterogeneous and architectured metallic materials (HAMM): Mechanics and manufacturing."
This symposium will provide a forum for discussion on how to tailor the mechanical behaviour of metallic materials via the design, manufacturing and optimization of heterogeneous and architectured microstructures toward desired performance and functionality. HAMM is an emerging research area that brings together the mechanics, materials, advanced manufacturing and applied physics communities.
The symposium will consist of invited and contributed talks on the topics including but is not limited to, heterogeneous/architectured materials, additive manufacturing, novel experimental characterization, multi- physics/multiscale modelling, etc.


Mechanics Of Architected Materials
Organizers: Lucas Meza (University of Washington), Xiaoyu (Rayne) Zheng (UCLA), Jordan Raney (University of Pennsylvania)

This symposium aims to bring together researchers from diverse backgrounds to discuss current developments in the mechanics of architected materials.
Advances in fabrication methods, design, and computational techniques have enabled the creation of new materials with unique and previously untenable mechanical properties such as negative Poisson’s ratio, pentamode stiffness, negative thermal expansion coefficient, and negative bulk modulus. In parallel, there have been exciting developments in the creation of programmable, shape changing and advanced signaling materials, where nonlinearities and multi-physics coupling often play a crucial role, and materials activated by external stimuli such as heat, pressure, electricity or chemical activity. This field lies at the cusp between physics, engineering, and mathematics, and has broad applications to the fields of biology, nanomaterials, energy materials, and medicine.
We invite abstracts with novel experimental, computational, and/or design advances related to the static, dynamic, and active/responsive properties of architected materials. We particularly invite contributions on topics involving the coupling of mechanical and non-mechanical interactions (i.e. light, heat, electricity, etc.).
We hope this symposium provides an avenue for researchers to forge new interdisciplinary connections.


Non-Linear Response Of Highly Deformable Structures
Organizers: Huanyu (Larry) Cheng (Penn State University), Zi Chen (Dartmouth), Wanliang Shan (Syracuse University), Teng Zhang (Syracuse University), Xueju Wang (University of Missouri)

Since the seminal work of Koiter in 1945, there has been significant attention devoted to the study of structural failures from mechanical buckling. Beyond the usually studied wrinkles and buckles, a number of mechanical instability modes have been discovered, such as creases, period-doubles, ridges, crumples and others. Besides, instead of being viewed as a failure mechanism, mechanical instabilities have been utilized in both natural systems and novel engineering applications as diverse as wearable electronic devices, smart surfaces with controllable adhesion and wetting properties, smart window and antifouling. Combined novel strategies in materials, mechanics, and manufacturing open up new possibilities for bio-integration, with appealing examples ranging from sensors to human-machine-environment interfaces.
The objective of this symposium is to provide a forum for researchers from academia, industry and national labs to present, discuss and exchange the latest development in theoretical, computational, and experimental studies on mechanical instabilities across a wide range of length-scales. Both fundamental research and practical applications of mechanical instabilities are welcome.
Topics invited for this symposium include but are not limited to:

  • Mechanical instability modes including wrinkles, buckles, and beyond
  • Structural design for mechanical instabilities
  • Controlled interface and surface properties with mechanical instabilities
  • Adhesion, friction, deformation and failure mechanisms
  • Mechanical properties and stability of thin films and multilayered structures
  • Thin film patterning, in-situ experimental testing and numerical modeling
  • Mechanical instabilities in biological and bio-inspired systems.


Origami And Kirigami: From Self-Assembly To Architected Materials
Organizers: Evgueni Filipov (University of Michigan), Johannes T.B. (Bas) Overvelde (AMOLF)

The principles of origami enable the self-assembly of flat sheets into deployable and reconfigurable three-dimensional structures. When extended as kirigami (by adding cuts) it is possible to achieve widely more complex geometries such as surfaces with non-zero Gaussian curvature or cellular systems. These new types of folded assemblages can be applied in the development of e.g. architected materials and robotics with unusual, tunable and multifunctional properties.
This mini-symposium aims to bring together the state of the art in the theory and emerging applications of these novel principles.
Topics of interest include, but are not limited to:

  • Theory and mechanics of origami and kirigami - Self-assembly and actuation of folding systems
  • Origami/kirigami-based architected materials with tunable and programmable characteristics
  • Reconfigurable and deployable systems and mechanisms
  • Applications of origami/kirigami in science and engineering
  • Analysis and physical testing of systems created from thin sheets (including kinematics, mechanics, multi-physical properties, etc.)
  • Bi-stable and multi-stable origami/kirigami structures and metamaterials


Conference Co-Chairs

Jialiang Le, University of Minnesota,  jle@umn.edu

Stefano Gonella, University of Minnesota, sgonella@umn.edu

Michele Guala, University of Minnesota, mguala@umn.edu