WIT Press

Efficiency Of Absorbing Boundary Conditions For Fluid-saturated Porous Media

Price

Free (open access)

Paper DOI

10.2495/SD950201

Volume

15

Pages

8

Published

1995

Size

654 kb

Author(s)

T. Akiyoshi, K. Fuchida & H.L. Fang

Abstract

For the dynamic analysis of fluid-saturated porous media, general expressions of the absorbing boundary conditions in time domain are presented in terms of u-w formulation, based on Biot's two phase mixture theory and Oth-order paraxial approximation. Numerical computation is conducted by using a 2D FE-program with the absorbing boundary conditions which is developed for dynamic effective stress liquefaction analysis. The results for a ID linear model show the validity and efficiency of proposed absorbing boundary conditions. Also applicability of the absorbing boundary conditions to nonlinear problems is illustrated for a 2D liquefaction problem. 1 Introduction The analysis of dynamic phenomena in fluid-saturated porous media is of

Keywords