Fast Multipole accelerated boundary element method for elastic wave propagation in multi-region domains - 9e COLLOQUE NATIONAL EN CALCUL DES STRUCTURES CSMA 2009, 25-29 mai 2009, Giens (Var) Accéder directement au contenu
Communication Dans Un Congrès Année : 2009

Fast Multipole accelerated boundary element method for elastic wave propagation in multi-region domains

Résumé

Solving the 3-D elastodynamic equations using traditional boundary element methods (BEMs) is greatly hindered by the fully-populated nature of the BEM matrix. In a previous study limited to homogeneous media, we have established that the Fast Multipole (FM) method reduces the complexity of a 3-D elastodynamic BEM to N log N per GMRES iteration. Here, the methodology is extented to piecewise-homogeneous domains using a FM-accelerated multi-region BE-BE coupling. Numerical examples, and a simple preconditioning approach, are presented.
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hal-01422242 , version 1 (24-12-2016)

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  • HAL Id : hal-01422242 , version 1

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Stéphanie Chaillat, Marc Bonnet, Jean-François Semblat. Fast Multipole accelerated boundary element method for elastic wave propagation in multi-region domains. 9e Colloque national en calcul des structures, CSMA, May 2009, Giens, France. ⟨hal-01422242⟩
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