User login

zichen's picture

Edge effect of strained bilayer nanofilms for tunable multistability and actuation

Inspired by the need to develop reconfigurable materials at the micro- and nano- scales that are capable of exhibiting more than one stable configuration, we employed both theoretical and computational models supported by experiments to study the multistable behavior of a Si/Cr microclaw and uncover the mechanical principles involved.

Wenbin Yu's picture

International Conference on Composites Materials (ICCM-21), Xi'an, China, August 20-25, 2017

The 21st International Conference on Composites Materials (ICCM-21) will be held in Xi'an, China, August 20-25, 2017. ICCM, the most premier conference in the field of composite materials, aims at encouraging the exchange of the researches and insights from scientists and scholars, and promoting research, development and use of composite material and structures. You are welcome to  submit to Track 2.2 Multiscale Modeling of Structures to share your great ideas on multiscale modeling.'s picture

Electromechanical Catastrophe

A transducer is a system that couples two loads. For example, an electromechanical transducer couples a mechanical force and an electrical voltage. A two-load, nonlinear system can exhibit rich behavior of bifurcation, which can be displayed in a three-dimensional space, with the horizontal plane representing the two loads, and the vertical axis representing the state of the system. In this three-dimensional space, a state of equilibrium at fixed loads corresponds to a point on a surface.

trisha_sain's picture

Phd positions in Michigan Technological University

PhD positions are available from Fall 2017, in Michigan Technological University, in Mechanical Engineering-Engineering Mechanics Department. The candidates are to work in the computational modeling of multiphysics behavior of polymer materials, high rate fracture response of gel like tissue mimicking materials or Design of microarchitectured polymer composites for improved functionality. Interested candidates can email their CV with relevant information at -tsain[AT]

Candidates with background in continuum mechanics, finite elements and materials modeling are preferred.

Postdoctoral Research Associate

The University of Notre Dame, Center for Shock Wave-processing of Advanced Reactive Materials (C-SWARM), is seeking highly qualified candidates for two postdoctoral associate positions in the area of computational mechanics/physics with emphasis on chemically reactive solids. C-SWARM is center of excellence established by National Nuclear Security Administration (NNSA) whose primary focus is on the emerging field of predictive science.

Timothy Morrissey's picture

A Transparent, Self-Healing, Highly Stretchable Ionic Conductor

Self-healing materials can repair damage caused by mechanical wear, thereby extending lifetime of devices. Here, a transparent, self-healing, highly stretchable ionic conductor is presented that autonomously heals after experiencing severe mechanical damage.

A Transparent, Self-Healing, Highly Stretchable Ionic Conductor

PhD position in Engineering Mechanics at the University of Colorado Boulder


Wave Mechanics Group at CU Boulder is seeking a highly motivated and talented research assistant with background in physics, applied mathematics, or mechanical/civil engineering. Please see the attachment for more info.


Two MSc positions are available at Western University, Canada

I am looking for two talented, self-motivated, and enthusiastic students with BSc degrees in mechanical or materials engineering. Students with a background in any of the following areas are recommended to apply:

  • Materials characterization
  • Solid mechanics and finite element modelling of materials


The selected candidate will be based at the Mechanical & Materials Engineering Department, Western University, London, ON, Canada. 

A PhD student position is available in Wave Propagation Analyses and Inverse Problems.

A PhD student position is available in wave propagation analyses and inverse problems in Department of Civil Engineering at The Catholic University of America, Washington, DC from Fall 2017.

For more information, please see the attached pdf file. 

L.H.Poh's picture

Postdoc position - continuum damage modeling of dynamic fracture for brittle materials

<p>We are seeking a post-doctoral fellow for the continuum damage modelling of dynamic fracture, in the National University of Singapore (see attachment). To apply, please send a single pdf file including cover letter, CV, list of publications and the contact details of 2 references, to Leong Hien Poh (</p>

Shaoxing Qu's picture

In Chinese: 2017力学前沿青年学术研讨会暨“百人计划”招聘


Shaoxing Qu's picture

In Chinese: 浙江大学工程力学系诚聘海内外英才



Mike Ciavarella's picture

On Pastewka and Robbins' Criterion for Macroscopic Adhesion of Rough Surfaces

On Pastewka and Robbins' Criterion for Macroscopic Adhesion of Rough Surfaces

M. Ciavarella

[+] Author and Article Information

J. Tribol 139(3), 031404 (Nov 30, 2016) (5 pages)

Paper No: TRIB-16-1057; doi: 10.1115/1.4034530

History: Received February 15, 2016; Revised July 18, 2016




Abstract | Introduction | A Simple Asperity Model | Pull-Off | Discussion | Conclusion | References

Bin Liu's picture

The widely used tensile stiffness ratio is not a correct measure of anisotropy degree

In our recent paper, some interesting conclusions are found when we attempt to establish a standardized compliance matrices for general anisotropic materials. The abstract is as follows.

PhD position at Weizmann Institute of Science on "Microscale matrix and interfacial properties of fibre-reinforced composites"

Our partner Weizmann Institute Science in Israel is currently trying to fill a PhD position for the FiBreMoD project. The title of the PhD project is "Microscale matrix and interfacial properties of fibre-reinforced composites", and will be supervised by Prof. Daniel Wagner. If you are an enthusiastic and motivated candidate with a background in Materials Science, Composites, Mechanics, or Chemistry/Chemical Engineering, then you should consider applying.

Chiqun Zhang's picture

On the relevance of generalized disclinations in defect mechanics

Chiqun Zhang            Amit Acharya

The utility of the notion of generalized disclinations in materials science is discussed within the physical context of modeling interfacial and bulk line defects like defected grain and phase boundaries, dislocations and disclinations. The Burgers vector of a disclination dipole in linear elasticity is derived, clearly demonstrating the equivalence of its stress field to that of an edge dislocation. We also prove that the inverse deformation/displacement jump of a defect line is independent of the cut-surface when its g.disclination strength vanishes. An explicit formula for the displacement jump of a single localized composite defect line in terms of given g.disclination and dislocation strengths is deduced based on the Weingarten theorem for g.disclination theory at finite deformation. The Burgers vector of a g.disclination dipole at finite deformation is also derived.

Simulation-Aided Design of Tubular Polymeric Capsules for Self-Healing Concrete

Dear all,

We have just published a new article on Simulation-Aided Design of Tubular Polymeric Capsules for self-healing concrete. It can be viewed/downloaded at: (open access) or (researchgate users). 

Kind regards,


Arash_Yavari's picture

On the Stress Field of a Nonlinear Elastic Solid Torus with a Toroidal Inclusion

In this paper we analyze the stress field of a solid torus made of an incompressible isotropic solid with a toroidal inclusion that is concentric with the solid torus and has a uniform distribution of pure dilatational finite eigenstrains. We use a perturbation analysis and calculate the residual stresses to the first order in the thinness ratio (the ratio of the radius of the generating circle and the overall radius of the solid torus). In particular, we show that the stress field inside the inclusion is not uniform.

Mike Ciavarella's picture

Lorentz Workshop "Micro/Nano Models for Tribology," Leiden, the Netherlands, 30/1-3/2/2017

We have organized a Lorentz Workshop with 60 selected partecipants leading scientists in tribology and contact mechanics mainly from Europe.

Attached a program.   Or see the web site

Micro/Nanoscale Models for Tribology (μ/n-Tribo-Models) 

Vladislav Yastrebov (co-organizer)

Lucia Nicola (co-organizer)

Annalisa Fasolino (co-organizer)

Michele Ciavarella (co-organizer)

Julien Scheibert (co-organizer)

International Conference ECCOMAS SMART 2017, Madrid, Spain, on smart materials

Within the frame of the 8th ECCOMAS Thematic Conference on Smart Structures and Materials (SMART 2017), to be held in Madrid, Spain, on June 5-8, 2017, we are organizing minisymposium MS13 titled “Smart materials capable of recoverable inelastic strain”. 

Relevant contributions are solicited specifically in the following technical areas:


Subscribe to iMechanica RSS Subscribe to iMechanica - All comments

More comments


Subscribe to Syndicate