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Validity of the one-dimensional limp model for porous media


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Doutres, O., Dauchez, N., Génevaux, J. M. and Dazel, O.. 2008. « Validity of the one-dimensional limp model for porous media ». Acta Polytechnica, vol. 48, nº 3. pp. 61-65.

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A straightforward criterion for determining the validity ofthe limp model validity for porous materials is addressed here. The limp model is an “equivalent fluid” model which gives a better description of 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 for identifying 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 1D analytical modeling for a specific boundary set: radiation of a vibrating plate covered by a porous layer.

Item Type: Peer reviewed article published in a journal
Doutres, Olivier
Affiliation: Autres
Date Deposited: 28 Oct 2014 15:19
Last Modified: 09 Apr 2021 18:29

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