Hybrid modal reduction for poroelastic materials - Université de Lyon Access content directly
Journal Articles Comptes Rendus Mécanique Year : 2008

Hybrid modal reduction for poroelastic materials

Abstract

A modal-like projection method for poroelastic materials is proposed and implemented for finite element calculations. Nonphysical Dirichlet conditions are imposed at the junction interface, involving constrained fluid displacements and free solid displacements. The $(u^s,U^f)$ formulation is used. The resulting frequency-dependent eigenproblem is solved without simplification using the non-linear Arnoldi algorithm. The projection subspace is spanned by calculated dynamic modes and fluid static boundary functions. A convergence study is performed and results are compared to classical Craig and Bampton and MacNeal approaches. The hybrid basis proves to be efficient.
Fichier principal
Vignette du fichier
batifol_cras08.pdf (368.71 Ko) Télécharger le fichier
Origin : Files produced by the author(s)
Loading...

Dates and versions

hal-00442506 , version 1 (23-10-2020)

Licence

Attribution

Identifiers

Cite

Cédric Batifol, Mohamed Ichchou, Marie-Annick Galland. Hybrid modal reduction for poroelastic materials. Comptes Rendus Mécanique, 2008, 336, pp.757-765. ⟨10.1016/j.crme.2008.09.005⟩. ⟨hal-00442506⟩
145 View
55 Download

Altmetric

Share

Gmail Facebook X LinkedIn More