research

Jiang Ke. Orthotropic metamaterials with freely tailorable elastic constants. AIP Advances, 2023, 13 (9): 095205.

Can a transverse load with zero resultant buckle an elastic rod like an axial load? Theory, simulations, and experiments show that it can, producing Euler-type instability and postbuckling even in the vanishing-thickness limit.

Watch the video here.

Maybe you are interested in the JMPS paper here.

PET is everywhere: bottles, packaging, fibers, films.

When we pull it, it can neck. What appears to be damage or the end of useful deformation can instead become the beginning of a new material state.

A fully funded PhD position is available at the Department of Mechanics and Materials, Faculty of Transportation Sciences, Czech Technical University in Prague (CTU), Czech Republic, within the international PICTUS doctoral fellowship programme.

Material strength is a classical concept that has recently found renewed applications in fracture mechanics, especially in models for crack nucleation in brittle solids. In this paper, we formulate material strength in the setting of finite elasticity and examine its geometric, constitutive, and symmetry-theoretic foundations. We show that spatial covariance requires a strength function to depend on both stress and the corresponding strain measure, so that strength is not controlled by stress alone, but by the pair (stress,strain).

Our latest paper, “Atomistic modeling of strain rate and temperature dependent tensile response of amorphous PEEK” is now freely accessible for the next 50 days from this link: https://authors.elsevier.com/a/1m%7Eye_l8CMeRY

Dear colleagues, please join us for an upcoming ASME-Noise Control & Acoustics Division (NCAD) webinar (Noise Control & Acoustics Division - ASME) on Uncertainty Analysis of Electromechanical Properties in Piezoelectric Energy Harvesters

A postdoctoral position of 12 months is available at CEMEF. The position is due to start as soon as possible.

The project takes place in the context of a collaboration with Safran Aircraft Engines and CEMEF (Mines Paris). We have developed a numerical framework that allow us to generate a conforming mesh to a tomographic (3D) segmented image of a woven composite material.

The goal of the project is to optimize the numerical framework in a parallel distributed architecture (MPI).

Multiple PhD positions at available at Mines Paris in the field of computational mechanics :

Our latest paper, “Mixed-Mode Traction–Separation Laws for Crystalline UHMWPE Interphases Derived from Molecular Dynamics" is now freely accessible for the next 50 days from this link: https://authors.elsevier.com/a/1moVO4kE0iQ8Y