Calcul haute performance en dynamique des contacts via deux familles de décomposition de domaine
type: Dataset
description: Numerical simulations of the dynamics of discrete structures in presence of numerous impacts and frictional contacts lead to CPU-intensive large time computations. To deal with such realistic assemblies, numerical tools have been developed, in particular the method called nonsmooth contact dynamics (NSCD). Such modeling has to deal with discreteness and nonsmoothness, such that domain decomposition approaches for regular continuum media have to be rethought. We present further two domain decomposition methods linked to Schwarz and Schur formalisms. Scalability and numerical performances of the methods for 2D and 3D granular media are studied, showing good parallel behavior on a supercomputer platform. The structural behavior of dense granular packing is herein used to introduce a spacial multilevel preconditioner with a coarse problem to improve convergence in a space-time approach.
issued: 2026-05-10T05:30:47.401281
language: fr
modified: 2026-05-10T05:30:47.401286
contact point: Organization
  fn: CCSD
keyword: calcul-haute-performance
keyword: decomposition-de-domaine
keyword: domain-decomposition
keyword: dynamique-des-contacts
keyword: hight-performance-computing
keyword: infoeu-reposemanticsdoctoralthesis
keyword: multi-echelle
keyword: multiscale
keyword: nonsmooth-contact-dynamics
keyword: physmecasolidphysics-physicsmechanics-physicssolid-mechanics-physicsclass-ph
keyword: physmecastruphysics-physicsmechanics-physicsstructural-mechanics-physicsclass-ph
keyword: spimecasolidengineering-sciences-physicsmechanics-physicsmed-phsolid-mechanics-physicsc
keyword: spimecastruengineering-sciences-physicsmechanics-physicsmed-phstructural-mechanics-physi
keyword: theses
keyword: validation
landing page: https://theses.hal.science/tel-00848363

Calcul haute performance en dynamique des contacts via deux familles de décomposition de domaine
type: Distribution
format: HTML
issued: 2026-05-10T05:30:47.403376
modified: 2026-05-10T05:30:47.383064
access URL: https://theses.hal.science/tel-00848363

test_moissonnage_selune
type: Agent