Polymeric plastics deform irreversibly (i.e., inelastically) whereas rubbers deform reversibly, i.e., elastically.
Thus, uniaxially stretching a rubber-plastic bilayer composite beyond its yield point can create an elastic strain mismatch between the two layers. Upon release, the bilayer may then bend out-of-plane.
Complex mechanical behaviours are generally met in macroscopically homogeneous media as effects of inelastic responses or as results of unconventional material properties, which are postulated or due to structural systems at the meso/micro-scale.
Examples are strain localization due to plasticity or damage and metamaterials exhibiting negative Poisson’s ratios resulting from special porous, eventually buckling, sub-structures.
Meredith Silberstein and Max Tepermeister
Cornell University, Sibley School of Mechanical and Aerospace Engineering
We seek candidates with research experience in computational mechanics:
Job requirements:
Ph.D. position at the Technion – Israel Institute of Technology. The research is concerned with the modeling of failure and fracture in soft materials and biological tissues. Preference will be given to candidates with background in nonlinear finite element methods and constitutive modeling. If you are interested, please send an email to me at: cvolokh [at] technion.ac.il (cvolokh[at]technion[dot]ac[dot]il) with a single PDF file containing
Postdoc positions are available in the group of Prof. JG Zhu at Jiangsu University, China. Those possessing PhDs in the area of solid mechanics and material science are sought. We are particularly interested in candidates with experience in experimental and computational mechanics, composite materials and structures etc. Applicants should submit a full curriculum vitae to zhujg [at] ujs.edu.cn (zhujg[at]ujs[dot]edu[dot]cn) .
Together with Ondřej Rokoš and Milan Jirásek, we are searching for a postdoctoral researcher to work with us on leveraging quasi-continuum methods towards robust simulations of initiation and propagation of instabilities in architectured materials and flexible mechanical metamaterials. Eligible candidates must hold a Ph.D. degree awarded in 2015 or later.
The Department of Mechanical Engineering at University of Rochester is searching for a new tenure-track Assistant Professor, to join in July 2022. The research field is materials science theory / computation particularly related to superconductors. Please see the attachement if interested or distribute to your network.
Several postdoctoral and graduate student openings with primary focus on biomechanics is available immediately in the Shenoy Research Group at the University of Pennsylvania. We are looking for strongly motivated candidates to work on Nation Cancer supported Cancer Metastasis Network Center. The center will focus on 1) cell-matrix interactions in cancer, 2) nuclear mechano-transduction and 3) cancer cell motility.
Our paper "Molecular‑level investigation on the spallation of polyurea" is freely available from this link: https://rdcu.be/cqkbG
We used molecular dynamics (MD) simulations to investigate the nanoscale mechanism associated with the spallation of polyurea, which allowed us to test some assumptions commonly made in the interpretation of similar experiments on the macroscale.
