Title

Acoustic Wave Propagation in a Composite of Two Different Poroelastic Materials with a Very Rough Periodic Interface: a Homogenization Approach

Authors

Authors

R. P. Gilbert;M. J. Ou

Abbreviated Journal Title

Int. J. Multiscale Comput. Eng.

Keywords

homogenization; poroelasticity; rough interface; Engineering, Multidisciplinary; Mathematics, Interdisciplinary; Applications

Abstract

Homogenization is used to analyze the system of Biot-type partial differential equations in a domain of two different poroelastic materials with a very rough periodic interface. It is shown that by using homogenization, such a rough interface can be replaced by an equivalent fiat layer within which a system of modified differential equations holds. The coefficients of this new system of equations are certain "effective" parameters. These coefficients are determined by solutions of the auxiliary problems which involve the detailed structure of the interface. In this paper the auxiliary problems are derived and the homogenized system of equations is given.

Journal Title

International Journal for Multiscale Computational Engineering

Volume

1

Issue/Number

4

Publication Date

1-1-2003

Document Type

Article

Language

English

First Page

431

Last Page

440

WOS Identifier

WOS:000208552900008

ISSN

1543-1649

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