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
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.
Dear researchers,
Hi all,
I am pleased to post my following publication:
Study on Dynamic Detection of Reinforced Concrete Bridge Damage by Finite Element Model Updating
Below is a blog post based on equipment that we have built for testing solid ice samples. We designed an ADMET biaxial testing system (eXpert 8600 series) in collaboration with the Rock and Ice Deformation Laboratory (RIDL) at Woods Hole Oceanograhic Institution (WHOI).
Test Application
Hi All,
My New Scientific Paper is :
Structural Probabilistic Health Monitoring of a Potentially Damaged Bridge
Mohammed Lamine MOUSSAOUI , Mohamed CHABAAT , Abderrahmane KIBBOUA
International Journal of Structural and Civil Engineering Research
Volume 10, No. 3, pp. 119-122, 2021
Universal deformations of an elastic solid are deformations that can be achieved for all possible strain-energy density functions and suitable boundary conditions. They play a central role in nonlinear elasticity and their classification has been mostly accomplished for isotropic solids following Ericksen's seminal work. Here, we address the same problem for transversely isotropic, orthotropic, and monoclinic solids.
Have you ever though about what make composite materials fail under cyclic loading? In the paper we collect evidence of what is fatigue damage actually is. We combine the collected clues into a conceptual model for fatigue damage in unidirectional composites. Next, we formulate a mathematical micromechanical model. The model can predict the fatigue life of a unidirectional fibre composites from the basic mechanics properties of the fibre, matrix and the fibre/matrix interface.
Dear colleagues,
The Frontiers in Robotics and AI has launched a new Research Topic, Soft Robotics based on Liquid Crystal Elastomers (LCEs).
The submission deadline is 19 January 2022.
Here is the homepage for this research topic:
https://www.frontiersin.org/research-topics/23109/soft-robotics-based-o…
As a contributing author, you will benefit from:
