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RESEARCH PAPERS

A Viscoelastic Model for the Dynamic Behavior of Saturated Poroelastic Soils

[+] Author and Article Information
J. P. Bardet

Civil Engineering Department, University of Southern California, Los Angeles, CA 90089-2531

J. Appl. Mech 59(1), 128-135 (Mar 01, 1992) (8 pages) doi:10.1115/1.2899417 History: Received June 29, 1990; Revised October 25, 1990; Online March 31, 2008

Abstract

A viscoelastic model is proposed to describe the dynamic response of the saturated poroelastic materials that obey the Biot theory (1956). The viscoelastic model is defined from the velocity and attenuation of dilatational and distortional waves in poroelastic materials. Its material properties are defined in terms of the elastic moduli, porosity, specific gravity, degree of saturation, and permeability of the soils. The proposed model is tested by comparing its response with the one of poroelastic materials in the case of axial and lateral harmonic loadings of one-dimensional columns. The viscoelastic model is simpler to use than poroelastic materials but yields similar results for a wide range of soils and dynamic loadings.

Copyright © 1992 by The American Society of Mechanical Engineers
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