Influence of Domain Decomposition Method on the solution of a simple granular test via the N.S.C.D

Damien Iceta (1) , Vincent Visseq (1) , Emilien Azéma (2) , Pierre Alart (1)

1 M3 - Modélisation Mathématique en Mécanique
2 PMMG - Physique et Mécanique des Milieux Granulaires

Non Smooth Contact Dynamics (NSCD) [1] has shown its efficiency in the simulation of granular media. Since the number of particles and contacts increases or/and the shape of discrete elements becomes more complex, numerical tools need to be improved to keep a reasonable CPU computation time. A first step in this direction has been performed in [2] by the parallelization of the NSCD contact solver. A second step consists in introducing a domain decomposition method adapted to the diffuse non-regularity of granular media. The aim of this presentation is to validate decomposition domain simulations of granular media, as regards of physical key points, on an academic test.

Mots clés: NonSmooth Contact Dynamics (NSCD); granular media; domain decomposition; statistical behavior

Domaines: Mécanique des structures [physics.class-ph]; Mécanique des structures [physics.class-ph]

Damien Iceta, Vincent Visseq, Emilien Azéma, Pierre Alart. Influence of Domain Decomposition Method on the solution of a simple granular test via the N.S.C.D. ICCCM 2011 - II International Conference on Computational Contact Mechanics, Jun 2011, Germany. ⟨hal-00776128⟩