research

Dear friends, I want to share our recent work on the shape characteristics of 2D crystal blisters. Micro- and nano-sized blisters can form spontaneously when two-dimensional (2D) crystals are transferred onto substrates because liquid molecules that are initially adsorbed on 2D material and substrate surfaces can be squeezed and trapped by interfacial forces. On the one hand, blisters are undesirable in 2D material devices as they impede charge/photon/phonon transport across the interface, so various means were developed to eliminate interfacial blisters. On the other hand, m

Prof. Fabrice Pierron

University of Southampton, UK

MatchID NV, Ghent, Belgium

Abstract

This article addresses the small-amplitude forced beam vibrations of two coaxial finite-length cylinders separated by a viscous Newtonian fluid. A new theoretical approach based on an Helmholtz expansion of the fluid velocity vector is carried out, leading to a full analytical expression of the fluid forces and subsequently of the modal added mass and damping coefficients. Our theory shows that the fluid forces are linear combinations of the Fourier harmonics of the vibration modes.

R Cavuoto, A Cutolo, K Dayal, L Deseri *, M Fraldi*, Journal of the Mechanics and Physics of Solids 172 (2023) 105189 https://doi.org/10.1016/j.jmps.2022.105189

Abstract

Exploiting the framework of peridynamics, a dimensionally-reduced formulation for plates is developed that allows for the through-thickness nucleation and growth of fracture surfaces,

Dear Colleagues,

I invite you to read our recent publication on Acta Materialia on the dynamic hardness evolution in metals.