Efficiency Of Absorbing Boundary Conditions For Fluid-saturated Porous Media
Price
Free (open access)
Transaction
Volume
15
Pages
8
Published
1995
Size
654 kb
Paper DOI
10.2495/SD950201
Copyright
WIT Press
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
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