A time-domain method to solve transient elastic wave propagation in a multilayer medium with a hybrid spectral-finite element space approximation - Université Paris Cité Accéder directement au contenu
Article Dans Une Revue Wave Motion Année : 2008

A time-domain method to solve transient elastic wave propagation in a multilayer medium with a hybrid spectral-finite element space approximation

Résumé

This paper introduces a new numerical hybrid method to simulate transient wave propagation in a multilayer semi-infinite medium, which can be fluid or solid, subjected to given transient loads. The medium is constituted of a finite number of unbounded layers with finite thicknesses. The method has a low numerical cost and is relatively straightforward to implement, as opposed to most available numerical techniques devoted to similar problems. The proposed method is based on a time-domain formulation associated with a 2D-space Fourier transform for the variables associated with the two infinite dimensions and uses a finite element approximation in the direction perpendicular to the layers. An illustration of the method is given for an elasto-acoustic wave propagation problem: a three-layer medium constituted of an elastic layer sandwiched between two acoustic fluid layers and excited by an acoustic line source located in one fluid layer.
Fichier principal
Vignette du fichier
publi-2008-WM-45_4_383-399-desceliers-soize-et-al-preprint.pdf (661.99 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-00686136 , version 1 (07-04-2012)

Identifiants

Citer

Christophe Desceliers, Christian Soize, Q. Grimal, G. Haïat, S. Naili. A time-domain method to solve transient elastic wave propagation in a multilayer medium with a hybrid spectral-finite element space approximation. Wave Motion, 2008, 45 (4), pp.383-399. ⟨10.1016/j.wavemoti.2007.09.001⟩. ⟨hal-00686136⟩
131 Consultations
701 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More