2007
DOI: 10.1016/j.crme.2007.07.001
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A Fast Multipole Method formulation for 3D elastodynamics in the frequency domain

Abstract: To cite this version:Stéphanie Chaillat, Marc Bonnet, J. F. Semblat. A Fast Multipole Method formulation for 3D elastodynamics in the frequency domain. Comptes Rendus Mécanique, Elsevier Masson, 2007, 335, pp.709-714 RésuméMéthode Multipôle Rapide pour l'élastodynamique 3D en domaine fréquentiel. La résolution deś equations de l'élastodynamique par la méthode deséléments de frontière (BEM) conduità un système linéaire plein. Des travaux récents sur leséquations de Helmholtz et Maxwell ontétabli la capacité de… Show more

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Cited by 10 publications
(12 citation statements)
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(19 reference statements)
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“…En pratique, la résolution numérique de cette formulation peutêtre effectuée en utilisant les travaux effectués enélastodynamique [14].…”
Section: Version Française Abrégéeunclassified
“…En pratique, la résolution numérique de cette formulation peutêtre effectuée en utilisant les travaux effectués enélastodynamique [14].…”
Section: Version Française Abrégéeunclassified
“…(e.g., ) and was adapted to integral equations of wave propagation in the 90s (e.g., ). Recently, the FMM has been extended to linear elasticity by Bonnet, Chaillat and Semblat . The theoretical complexity of the multi‐level FMM is scriptO(Nnormallog N) per iteration both for CPU time and memory, where N is the number of DOFs.…”
Section: Introductionmentioning
confidence: 99%
“…The method has been introduced by Rokhlin et al (e.g., [7]) and was adapted to integral equations of wave propagation in the 90s (e.g., [8][9][10]). Recently, the FMM has been extended to linear elasticity by Bonnet, Chaillat and Semblat [11,12]. The theoretical complexity of the multi-level FMM is O.N log N/ per iteration both for CPU time and memory, where N is the number of DOFs.Preconditioners are prescribed to yield fast convergence independently of both mesh size and frequency.…”
mentioning
confidence: 99%
“…As a third and last test, we compare our algorithm (FSM) with the FMM algorithm [9,10,12] in the low frequency region. We consider the scattering problem of a shearing plane wave, with the above-detailed properties, by a rigid elastic sphere.…”
Section: Numerical Experimentsmentioning
confidence: 99%
“…Earlier works in acoustics and electronagnetism lead to a complexity of O(N log 2 N ) in time and memory per iteration. It has recently been extended to linear elasticity by Bonnet, Chaillat and Semblat [9,10,12]. A different kind of compression for the BE matrices can be obtained by applying the adaptive cross approximation (ACA) algorithm to hierarchical matrices [3,4,5].…”
Section: Introductionmentioning
confidence: 99%