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Accueil du site > Évènements > Séminaires > Séminaires LMA > Archives LMA > 2014

Mardi 9 Décembre 2014 / LMA

publié le , mis à jour le

Séminaire LMA

Orateur : Mikael Barboteu

Professeur LAMPS, Université de Perpignan

Titre : "A Hyperelastic Dynamic Frictional Contact Model with Energy-Consistent Properties"

Date et lieu : le Mardi 9 Décembre 2014 à 11h, Salle Perès, LMA

Résumé : In this work, we present an energy-consistent numerical model for the dynamic frictional contact between a hyperlastic body and a foundation. Our contribution has two traits of novelty. The first one arises from the specific frictional contact model we consider, which provides intrinsic energy-consistent properties. The contact is modeled with a normal compliance condition of such a type that the penetration is limited with unilateral constraint and friction is described with a version of Coulomb’s law of dry friction. The second trait of novelty consists in the construction and the analysis of an energy-consistent scheme, based on recent energy-controlling time integration methods for nonlinear elastodynamics. Some numerical results for representative impact problems are provided. They illustrate both the specific properties of the contact model and the energy-consistent properties of the numerical scheme.