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16 papers · 1 filter
From microstructural features to effective toughness in disordered brittle solids
Vincent Démery, Laurent Ponson, Alberto Rosso
The relevant parameters at the microstructure scale that govern the macroscopic toughness of disordered brittle materials are investigated theoretically. We focus on planar crack p…
Friction and the oscillatory motion of granular flows
Lydie Staron
This contribution reports on numerical simulations of 2D granular flows on erodible beds. The broad aim is to investigate whether simple flows of model granular matter exhibits spo…
The granular silo as a continuum plastic flow: the hour-glass vs the clepsydra
Lydie Staron, Pierre-Yves Lagrée, Stéphane Popinet
The granular silo is one of the many interesting illustrations of the thixotropic property of granular matter: a rapid flow develops at the outlet, propagating upwards through a de…
Non-symmetric localized fold of a floating sheet
Marco Rivetti
An elastic sheet lying on the surface of a liquid, if axially compressed, shows a transition from a smooth sinusoidal pattern to a well localized fold. This wrinkle-to-fold transit…
Electrostatic interactions mediated by polarizable counterions: weak and strong coupling limits
Vincent Démery, David S. Dean, Rudolf Podgornik
We investigate the statistical mechanics of an inhomogeneous Coulomb fluid composed of charged particles with static polarizability. We derive the weak- and the strong-coupling app…
Rarefied gas correction for the bubble entrapment singularity in drop impacts
Laurent Duchemin, Christophe Josserand
We study the non-continuous correction in the dynamics of drop impact on a solid substrate. Close to impact, a thin film of gas is formed beneath the drop so that the local Knudsen…