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Sur une stratégie de calcul en dynamique transitoire en présence de variabilité paramétrique

Abstract : In this work, a multiscale strategy for dynamics problems based on the LATIN method is proposed. This work ensues from PhD Thesis of H. Lemoussu. He has applied the singlescale version of the LATIN methods to dynamics problems. This work also ensues from recent advances of the LATIN method which concern the introduction of a two scale description of the unknowns of the problem. This multiscale version has been proposed for statics and quasi-statics problems. The aim of the present work is to extend the multiscale approach to transient dynamics. Specifics admissibility conditions are presented for dynamics problems. This work has allowed to obtain the scalability of the domain decomposition method in dynamics in the case of perfect interfaces. We also propose a strategy dedicated to parametrics analysis in dynamics concerning variability of the contact interface properties. This strategy is based on the knowledge of the LMT Cachan about parametric analysis of problems with contact. The proposed strategy in dynamics allows significant reductions of the computation costs of parametric analysis to a direct approach.
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https://tel.archives-ouvertes.fr/tel-00442660
Contributor : Ens Cachan Bibliothèque <>
Submitted on : Tuesday, December 22, 2009 - 10:39:05 AM
Last modification on : Thursday, December 10, 2020 - 10:59:03 AM
Long-term archiving on: : Thursday, October 18, 2012 - 11:20:26 AM

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  • HAL Id : tel-00442660, version 1

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David Odièvre. Sur une stratégie de calcul en dynamique transitoire en présence de variabilité paramétrique. Mécanique [physics.med-ph]. École normale supérieure de Cachan - ENS Cachan, 2009. Français. ⟨tel-00442660⟩

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