Modeling of multilayered structures including porous materials using hierarchical elements and non coincident meshes

Auteurs-es

  • S. Rigobert Cent Natl de la Recherche
  • F. Sgard Cent Natl de la Recherche
  • N. Atalla Cent Natl de la Recherche

Mots-clés :

Degrees of freedom (mechanics), Elastic moduli, Finite element method, Hierarchical systems, Mathematical models, Porous materials, Acoustical excitation, Hierarchical poroelastic elements, Mixed displacement-pressure formulation

Résumé

The coupling of mixed displacement-pressure formulation using hierarchical elements with a finite element plate modeling of an elastic domain assuming non-coincident meshes can be done. It can be used to predict the mean quadratic velocity and the transmission loss of a plate coated with porous materials. The results are very accurate and are with a reduced number of unknowns as compared to classical finite element modeling of the structure with the coincident meshes.

Fichiers supplémentaires

Publié-e

2000-09-01

Comment citer

1.
Rigobert S, Sgard F, Atalla N. Modeling of multilayered structures including porous materials using hierarchical elements and non coincident meshes. Canadian Acoustics [Internet]. 1 sept. 2000 [cité 1 mai 2026];28(3):32-3. Disponible à: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/1277

Numéro

Vol. 28 No. 3 (2000)

Rubrique

Actes du congrès de la Semaine canadienne d'acoustique

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