Validity of the one-dimensional limp model for porous materials
Abstract
A straightforward criterion to determine the limp model validity for porous materials is addressed here. The limp model is an "equivalent fluid" model which gives a better description of the porous behavior than the well known "rigid frame" model. It is derived from the poroelastic Biot model assuming that the frame has no bulk stiffness. A criterion is proposed to identify the porous materials for which the limp model can be used. It relies on a new parameter, the Frame Stiffness Influence FSI based on porous material properties. The critical values of FSI under which the limp model can be used, are determined using a 1D analytical modeling for a specific boundary set: radiation of a vibrating plate covered by a porous layer.
Cite
@article{arxiv.0810.3126,
title = {Validity of the one-dimensional limp model for porous materials},
author = {Olivier Doutres and Nicolas Dauchez and Jean-Michel Génevaux and Olivier Dazel},
journal= {arXiv preprint arXiv:0810.3126},
year = {2008}
}
Comments
12th International Student Conference on Electrical Engineering, Prague : Tch\`eque, R\'epublique (2008)