Emergence of Strain Localization in Porous Rocks Characterized by Full-Field Measurement in Plane Strain Condition

被引：1
|
作者：
Besuelle, Pierre [1 ]
Lanata, Patrizia [1 ]
机构：
[1] Univ Grenoble Alpes, CNRS, 3SR, F-38000 Grenoble, France
来源：
BIFURCATION AND DEGRADATION OF GEOMATERIALS WITH ENGINEERING APPLICATIONS | 2017年
关键词：
SANDSTONE; STRESS;
D O I：
10.1007/978-3-319-56397-8_4
中图分类号：
P5 [地质学];
学科分类号：
0709 ; 081803 ;
摘要：
The development of a new true triaxial cell which contains a device to observe the specimen under loading for full field measurement, has allowed studying the emergence of strain localisation in rock specimens. Two porous rocks have been investigated, a sandstone and a clayey rock. Both show similarities in the strain localization process, with an early diffuse strain localization pattern well before the stress peak that evolves progressively toward a reduced number of shear bands pattern. This final pattern, being usually reported in the literature, is associated to the stress peak and initiation of strain softening.
引用
收藏
页码：25 / 31
页数：7
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