Finite element analysis of the indentation test on rocks with microstructure

被引：21
|
作者：
Sulem, J
Cerrolaza, M
机构：
[1] Ecole Natl Ponts & Chaussees, LCPC, CERMES, F-77455 Marne La Vallee 2, France
[2] Cent Univ Venezuela, Fac Ingn, Caracas, Venezuela
来源：
COMPUTERS AND GEOTECHNICS | 2002年 / 29卷 / 02期
关键词：
strength; microstructure; elasto-plasticity; finite element analysis; scale effect;
D O I：
10.1016/S0266-352X(01)00023-4
中图分类号：
TP39 [计算机的应用];
学科分类号：
081203 ; 0835 ;
摘要：
Strength parameters of rocks are currently determined from indentation tests. In this paper, a finite element analysis of this test is presented and scale effect is studied. The rock is modelled as an elasto-plastic medium with Cosserat microstructure and consequently possesses an internal length. The response of the indentation curve is studied for various values of the size of the indentor as compared to the internal length of the rock in order to assess the scale effect. (C) 2002 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：95 / 117
页数：23
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