FINITE-ELEMENT ANALYSIS OF STRAIN LOCALIZATION IN FRICTIONAL MATERIALS

被引:93
|
作者
LEROY, Y
ORTIZ, M
机构
[1] Brown Univ, United States
关键词
Granular Materials--Deformation - Mathematical Techniques--Finite Element Method - Soils--Stresses;
D O I
10.1002/nag.1610130106
中图分类号
P5 [地质学];
学科分类号
0709 ; 081803 ;
摘要
In one of the cases investigated, that of granular media subjected to plane strain biaxial loading, isoparametric elements are seen to inhibit localization altogether. With these examples by way of motivation, the performance of a recently proposed finite element method in the context of strain localization in frictional materials is assessed, with particular emphasis on three-dimensional problems. In passing, some issues pertaining to the post-bifurcation response of biaxial specimens are examined. In particular, the numerical simulations suggest that the observed softening is a geometrical effect not attributable to constitutive behavior.
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页码:53 / 74
页数:22
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