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Two-scale Dirichlet-Neumann Preconditioners for Boundary Refinements

  • Manufacture Francaise des Pneumatiques Michelin
  • Department of Mechanics École Polytechnique

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Résumé

The present work introduces simple Dirichlet-Neumann preconditioners for the solution of elasticity problems in presence of numerous small disjoint geometric refinements on the boundary of the domain, situation which typically occurs in the tire industry. Moreover, the condition number of the preconditioned system is proved to be independent of the number and the size of the small details on the boundary. Finally, as an enhancement, a second proposed preconditioner makes use of a coarse space counterbalancing the effect of essential boundary conditions on the small details, and a simple numerical academic test illustrates the increased ef- ficiency. Further details on the motivation as well as complete proofs can be found in [4, 5].

langue originaleAnglais
titreDomain Decomposition Methods in Science and Engineering XVI
EditeurSpringer Verlag
Pages449-454
Nombre de pages6
ISBN (imprimé)9783540344681
Les DOIs
étatPublié - 1 janv. 2007
Modification externeOui

Série de publications

NomLecture Notes in Computational Science and Engineering
Volume55
ISSN (imprimé)1439-7358

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