Titre :

Application of nodal discontinuous Galerkin finite element method for 2D nonlinear elastic wave propagation

Auteur(s) :

Li, Yifeng [Auteur]
Wang, Jingjing [Auteur]
Bou Matar Lacaze, Olivier [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]

Titre de la manifestation scientifique :

21st International Congress on Sound and Vibration, ICSV 21

Ville :

Beijing

Pays :

Chine

Date de début de la manifestation scientifique :

2014

Titre de l’ouvrage :

Proceedings of 21st International Congress on Sound and Vibration, ICSV 21

Date de publication :

2014

Résumé en anglais : [en]

In order to solve the elastic wave equation in heterogeneous media with arbitrary high order accuracy in space on unstructured meshes, a nodal Discontinuous Galerkin Finite Element Method (DG-FEM) is presented, which ...
Lire la suite >In order to solve the elastic wave equation in heterogeneous media with arbitrary high order accuracy in space on unstructured meshes, a nodal Discontinuous Galerkin Finite Element Method (DG-FEM) is presented, which combines the geometrical flexibility of the Finite Element Method and strongly nonlinear wave simulation capability of the Finite Volume Me-thod. The equations of nonlinear elastodynamics have been written in a conservative form in order to facilitate the numerical implementation and introduce different kinds of elastic non-linearities, such as the classical nonlinearities and non-classical hysteretic nonlinearities. In the calculation of DG-FEM scheme, different kinds of boundary conditions and numerical fluxes have been discussed. The numerical simulations of linear elastic wave propagation and plane wave nonlinear propagation demonstrated the developed DG-FEM scheme has an excellent precision and performance in numerical application.Lire moins >

Langue :

Anglais

Comité de lecture :

Oui

Audience :

Non spécifiée

Vulgarisation :

Non

Collections :

• Institut d'Électronique, de Microélectronique et de Nanotechnologie (IEMN) - UMR 8520

Source :

Harvested from HAL