%0 Conference Paper %F Oral %T Décomposition de domaine en dynamique granulaire par éléments discrets et application au ballast ferroviaire %+ Modélisation Mathématique en Mécanique (M3) %+ Laboratoire de Mécanique et Génie Civil (LMGC) %+ Physics of Railway Systems, Innovation and Research Departement of SNCF %+ ThermoMécanique des Matériaux (ThM2) %A Alart, Pierre %A Iceta, Damien %A Phuong Hoang, Thi Minh %A Dureisseix, David %A Saussine, Gilles %Z CIFRE SNCF DRI %< avec comité de lecture %B 19e Congrès Français de Mécanique - CFM09 %C Marseille, France %8 2009-08-24 %D 2009 %K décomposition de domaine %K nonsmooth contact dynamics %K dynamique non régulière %Z Engineering Sciences [physics]/Mechanics [physics.med-ph]/Structural mechanics [physics.class-ph] %Z Physics [physics]/Mechanics [physics]/Structural mechanics [physics.class-ph]Conference papers %X Large granular dynamical systems simulation requires the help of parallel computations. Domain decomposition methods (DDM), classically used for continuum media is extended herein to a discrete element model. Parallelization of the LMGC90 code, developed in LMGC, for a parallel distributed memory environment is of interest to the application to railway track ballast, at SNCF. Here, we focus on two different versions of a DDM, within the framework of LMGC90 code. %G French %2 https://hal.science/hal-00413724/document %2 https://hal.science/hal-00413724/file/CFM09-485.pdf %L hal-00413724 %U https://hal.science/hal-00413724 %~ CNRS %~ LMGC %~ MIPS %~ UNIV-MONTPELLIER %~ UM-2015-2021 %~ I-REVUES