Failure Behavior of Sandstone Specimens Containing a Single Flaw Under True Triaxial Compression

2022 ◽  
Author(s):  
Xu Chang ◽  
Xu Zhang ◽  
Faning Dang ◽  
Bafang Zhang ◽  
Fangqiang Chang
Keyword(s):  
Triaxial Compression ◽  
Failure Behavior ◽  
True Triaxial ◽  
True Triaxial Compression ◽  
Single Flaw

scholarly journals Experimental and Numerical Study of Strength and Failure Behavior of Precracked Marble under True Triaxial Compression

2021 ◽  
Vol 2021 ◽  
pp. 1-11
Author(s):  
Yong Han ◽  
Yuemao Zhao ◽  
Jinglong Li
Keyword(s):  
Shear Failure ◽  
Numerical Study ◽  
Triaxial Compression ◽  
Numerical Results ◽  
Peak Strength ◽  
Failure Behavior ◽  
Compression Tests ◽  
True Triaxial ◽  
Fracturing Process ◽  
True Triaxial Compression

Cracks play an important role in evaluating the strength and failure behavior of engineering rock mass. In order to increase the understanding of strength and failure mechanism of precracked rock, crack propagation and coalescence from preexisting cracks under true triaxial compression are investigated using true triaxial compression tests and Cellular Automata Software for engineering Rockmass fracturing process (CASRock). Three types of specimens were studied experimentally and numerically. Experimental and numerical results show that both the preferential angle and areal intensity of preexisting cracks can affect the compressive strength and failure behavior of the specimens. The peak strength firstly decreases and then increases with increase of the preferential angle. Also, the peak strength nonlinearly decreases with the increase of cracks’ areal intensity. The numerical results show that the crack initiation and coalescence are observed and characterized from the inner and outer tips of preexisting cracks in specimens containing single crack and multiple parallel cracks. The main shear failure in the specimen containing multiple unparallel preexisting cracks initiate and propagate from one of the macroscopic preexisting cracks, and other preexisting cracks do not initiate, propagate, and coalesce until reaching the peak strength.

Damage Evolution and Failure Behavior of Sandstone under True Triaxial Compression

2018 ◽  
Vol 42 (3) ◽  
pp. 20170295 ◽  
Author(s):  
Yinlong Lu ◽  
Wenshuai Li ◽  
Lianguo Wang ◽  
Zhaolin Li ◽  
Xingyu Meng ◽  
...  
Keyword(s):  
Damage Evolution ◽  
Triaxial Compression ◽  
Failure Behavior ◽  
True Triaxial ◽  
True Triaxial Compression

A Three-Dimensional Failure Criterion for Hard Rocks Under True Triaxial Compression

2019 ◽  
Vol 53 (1) ◽  
pp. 103-111 ◽  
Author(s):  
Xia-Ting Feng ◽  
Rui Kong ◽  
Chengxiang Yang ◽  
Xiwei Zhang ◽  
Zhaofeng Wang ◽  
...  
Keyword(s):  
Failure Criterion ◽  
Triaxial Compression ◽  
Three Dimensional ◽  
True Triaxial ◽  
Hard Rocks ◽  
True Triaxial Compression
Sign in / Sign up

Export Citation Format

Share Document