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soft materials

Matt Pharr's picture

'Sideways' and stable crack propagation in a silicone elastomer

We have discovered a peculiar form of fracture that occurs in a highly stretchable silicone elastomer (Smooth-On Ecoflex 00–30). Under certain conditions, cracks propagate in a direction perpendicular to the initial pre-cut and in the direction of the applied load. In other words, the crack deviates from the standard trajectory and instead propagates perpendicular to that trajectory. The crack arrests stably, and thus the material ahead of the crack front continues to sustain load, thereby enabling enormous stretchabilities. We call this phenomenon 'sideways' and stable cracking.

Meredith N. Silberstein's picture

SES 2019 - Mechanics and Physics of Soft Materials

Abstract submission for the Society of Engineering Science annual conference is now open:

The deadline to submit is April 30th, 2019. Please consider subitting to our symposium on the Mechanics and Physics of Soft Materials. A full description is given below.

Ph.D. and Post-doc positions available at the Technion, Israel

Our group is part of the Department of Materials Science and Engineering at Techion – Israel Institute of Technology, located in Haifa, Israel.

We employ theoretical and experimental tools to understand the relations between the micro-structure and the macroscopic response of soft materials. Materials of interest include electro-active polymers, 3D printed lattice structures, biopolymers, and gels.

Xin Ning's picture

Postdoc Position in Flexible Electronics

POST-DOCTORAL SCHOLAR, PENN STATE:  The Advanced Structures Laboratory, Department of Aerospace Engineering at the Pennsylvania State University, University Park Campus invites applications for an appointment as a Postdoctoral Scholar.


Teng zhang's picture

Deriving a lattice model for neo-Hookean solids from finite element methods

Lattice models are popular methods for simulating deformation of solids by discretizing continuum structures into spring networks. Despite the simplicity and efficiency, most lattice models only rigorously converge to continuum models for lattices with regular shapes. Here, we derive a lattice model for neo-Hookean solids directly from finite element methods (FEM). The proposed lattice model can handle complicated geometries and tune the material compressibility without significantly increasing the complexity of the model.

Yunwei Mao's picture

USNC/TAM 2018 mini-symposium 362: Failure and Damage in Soft Materials: From Instabilies to Cracking

Dear Colleagues,

We would like to invite you to submit an abstract to our symposium titled “362 Failure and Damage in Soft Materials: From Instabilies to Cracking” as part of the 18th U.S. National Congress for Theoretical and Applied Mechanics (Northwestern University in Chicago, IL, June 4-9, 2018).

Soft Materials Mechanics and the 2017 ASME IMECE

Dear Colleagues,

The Soft Materials Mechanics Technical Committee (TC) is pleased to announce that the abstract submission process for the 2017 ASME IMECE in Tampa, FL is open. The TC symposium solicits abstracts from many disciplines represented from previous years (active materials, gels, biomaterials, 3D printing, and more) as well new subject areas and collaborations.

Meredith N. Silberstein's picture

Call for Abstracts SES - Mechanics of Polymers with Dynamic Bonds

Dear Colleagues,

We invite you to submit an abstract to "Mechanics of Polymers with Dynamic Bonds" (Symposium C-3) at the Society for Engineering Science annual conference this fall. SES will take place Oct 2-5, 2016 at the University of Maryland. The abstract deadline is June 15th. Further conference details can be found at

Chiqun Zhang's picture

A non-traditional view on the modeling of nematic disclination dynamics

Chiqun Zhang          Xiaohan Zhang         Amit Acharya          Dmitry Golovaty          Noel Walkington

Nonsingular disclination dynamics in a uniaxial nematic liquid crystal is modeled within a mathematical framework where the kinematics is a direct extension of the classical way of identifying these line defects with singularities of a unit vector field representing the nematic director. It is well known that the universally accepted Oseen-Frank energy is infinite for configurations that contain disclination line defects. We devise a natural augmentation of the Oseen-Frank energy to account for physical situations where, under certain conditions, infinite director gradients have zero associated energy cost, as would be necessary for modeling half-integer strength disclinations within the framework of the director theory. Equilibria and dynamics (in the absence of flow) of line defects are studied within the proposed model. Using appropriate initial/boundary data, the gradient-flow dynamics of this energy leads to non-singular, line defect equilibrium solutions, including those of half-integer strength. However, we demonstrate that the gradient flow dynamics for this energy is not able to adequately describe defect evolution. Motivated by similarity with dislocation dynamics in solids, a novel 2D-model of disclination dynamics in nematics is proposed. The model is based on the extended Oseen-Frank energy and takes into account thermodynamics and the kinematics of conservation of defect topological charge. We validate this model through computations of disclination equilibria, annihilation, repulsion, and splitting. We show that the energy function we devise, suitably interpreted, can serve as well for the modeling of equilibria and dynamics of dislocation line defects in solids making the conclusions of this paper relevant to mechanics of both solids and liquid crystals.

Sung Hoon Kang's picture

[Call for Papers] 3D Printed Soft Materials, ASME IMECE 2016

We would like to invite you to submit an abstract to the session on 3D Printed Soft Materials at the ASME 2016 IMECE to be held from November 11 to November 17, 2016 in Phoenix, AZ.

Additive manufacturing, also known as 3D printing, offers unique opportunities to explore novel properties and mechanics of soft materials. This session calls papers from research efforts related to soft materials with novel properties realized or created using 3D printing techniques. Specific topics of interest include, but not limited to:

yann.charles's picture

PostDoctoral Position - Universities Paris 7 & Paris 13 , Paris, France

no longer available.


A 15 months post Doctoral position is avalaible on mechanical and numerical modeling fields. This is a join project between Univ. Paris 7 & Paris 13.

The present postdoc subject is focussed on situations in which a wetting or dewetting front is interacting with a soft, more or less deformable material.

More details in the enclosed pdf description file.

Cai Shengqiang's picture

wet adhesion between two soft layers

Two solids can adhere to each other in the presence of a liquid bridge between them, which is called wet adhesion. When the solid is soft, the liquid bridge can cause deformation in the material, and in turn, the deformation may have dramatic effects on the wet adhesion. To investigate the effect, in this article, we calculate the deformation in two soft layers with different separations and connected by a liquid bridge. We illustrate the effect of deformation in the soft layers on the adhesive force.

Jeong-Yun Sun's picture

Ionic Skin

Research paper.

Title:  Ionic Skin


Authors: J.-Y. Sun, C. Keplinger, G.M. Whitesides, Z. Suo


Yu-Xin XIE's picture

Call for abstracts: International Workshop on Pattern Formation in Soft Materials


Dear Colleagues,

You are welcome to submit abstracts to the workshop of  "International Workshop on Pattern Formation in Soft Materials" chaired by Prof. Zhigang Suo & Prof. Yibin Fu, which will be held from 1th to 4th of June 2015 in Tianjin, China.  More details could be got by clicking on Thanks for your attention.

Best wishes,

Yu-Xin XIE

Xuanhe Zhao's picture

Call for Abstracts: Symposium on Mechanics of Soft Materials - ASME IMECE 2014

Dear Colleagues:

We would like to invite you to present your work at "Symposium on Mechanics of Soft Materials" in ASME 2014 International Mechanical Engineering Congress & Exposition ASME Congress and Exposition, Montreal's downtown convention center, 14-20 November 2014.

Rui Huang's picture

Minisymposium on Mechanics and Physics of Soft Matter Materials

As part of USNCTAM2014 (17th U.S. National Congress on Theoretical & Applied Mechanics) to be held at Michigan State University, East Lansing, Michigan from June 15-20, 2014, we are organizing a Minisymposium entitled

Mechanics and Physics of Soft Matter Materials 

ICMoBT 2013 - Program now available

5th International Conference of Mechanics of Biomaterials and Tissues 
8-12 December, Sitges, Spain

To check the program or to register, go to

An exhibition will run alongside the conference sessions. Companies already registered as exhibitors include: Asylum Research, Biomomentum, Bose, CSM Instruments, PCS Instruments.


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