A general class of implicit bodies was proposed to describe elastic response of solids, which contains the Cauchy–Green tensor as a function of Cauchy stress. Here, we consider the buckling of solids described by such a subclass of implicit constitutive relation. We present a general linear incremental theory and carry out bifurcation analysis of a uniaxially compressed rectangular layer described by an implicit constitution. We then provide general governing equations regarding the mixed unknowns, i.e., displacement and stress fields, within the framework of finite strain deformation.

Weight functions are practical tools in linear elastic systems where several discrete or continuously distributed sources cause something, deformation, stress, or related stuff. In linear fracture mechanics, as also in the object of this blog, weight functions are used to calculate stress intensity factors. If the load is divided into discrete or continuous separate or overlapping parts which each gives a known contribution to the stress intensity factor, i.e. has a known weight, calculation for new loads may be reduced to simple algebra instead of extensive numerical calculations.

Multiscale and Multiphysics Mechanics of Materials Research Lab (M4RL) has one Ph.D. position (Graduate Research Assistantship) available in the field of advanced multifunctional durable concrete and cementitious materials. The research work will have both computational and experimental components. Individuals interested in multifunctional concretes, Phase Change Materials (PCMs), multiscale/multiphysics material modeling, experimental mechanics and machine learning are encouraged to apply.

Dear colleagues,

Dr. Wentao Yan's group at the Department of Mechanical Engineering, National University of Singapore (NUS), focuses on metal additive manufacturing: computational modeling, experimental investigation and data analytics.

EML Webinar (Season 2) on 15 September 2021 will be given by Xavier Trepat on engineering the shape and mechanics of cellular monolayers. Discussion leader: Andrej Kosmrlj, Princeton University

Time: 9 am Boston, 2 pm London, 9 pm Beijing on 15 September 2021

Zoom Link: https://ter.ps/EMLWebinarS2

Prof. Wei Cai at the Mechanical Engineering Department of Stanford University is seeking a postdoctoral researcher to lead a project on the modeling of dislocations dynamics in the presence of hydrogen.  The major task of this project is to enable/perform Dislocation Dynamics simulations with hydrogen effects using the ParaDiS program. Molecular dynamics simulations may be required to provide physical input to the Dislocation Dynamics model.  The postdoctoral researcher is also expected to collaborate with external experimentalists working on this project.

A postdoc position is available in the National University of Singapore, on the development of a multi-physics degradation model for building facade materials. Description and application details are provided below.

Viscoelastic materials are receiving increasing attention in soft robots and pressure sensitive adhesives design, but also in passive damping techniques in automotive and aerospace industry. Here, by using the correspondence principle originally developed by Lee and Radok and further extended by Ting and Greenwood, we transform the elastic solutions of Persson for contact of nominally flat but randomly rough surfaces to viscoelastic indentation. As an example, the cases of step loading and of the response to a single cycle of harmonic loading are studied.

Multiscale Simulation Research Center (MSRC), with Departments of Mechanical, Civil, and Chemical Engineering at Manipal University Jaipur (MUJ), Jaipur, Rajasthan, India is organizing a three days International Conference on “Recent Advances in Modeling and Simulation Techniques in Engineering and Sciences[RAMSTES-2021]” to be held on 8-10, December 2021 at MUJ. Keynote speakers in the program include Prof. Ravi Chander K., University of Texas, Austin, Prof. Vishnu Pareek, Dean of Engineering, CurtinUniversity, Australia, Prof.