Micromechanical computational modeling of expansive porous media

被引：17
|
作者：
Murad, MA
Moyne, C
机构：
[1] LNCC MCT, Lab Nacl Computacao Cient, BR-25651070 Petropolis, RJ, Brazil
[2] CNRS, LEMTA, INPL, UHP,UMR 7563, F-54504 Vandoeuvre Les Nancy, France
来源：
COMPTES RENDUS MECANIQUE | 2002年 / 330卷 / 12期
关键词：
porous media; expansive clays; effective stress; homogenization; Poisson-Boltzmann; swelling (disjoining) pressure;
D O I：
10.1016/S1631-0721(02)01543-7
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
A modified Terzaghi principle is proposed to describe the influence of locally coupled electro-chemo-mechanical processes in highly compacted swelling clays upon the form of the macroscopic modified effective stress principle. The two-scale model is derived using the homogenization procedure to upscale the microscopic behavior of a two-phase system composed of clay particles saturated by a completely dissociated electrolyte aqueous solution. Numerical experiments are performed to illustrate the results in a particular cell. geometry. (C) 2002 Academie des sciences/Editions scientifiques et medicales Elsevier SAS.
引用
收藏
页码：865 / 870
页数：6
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