Numerical Simulation of Ring-Shape Rock Failure under Compressive Loading
In this paper, a ring shaped numerical specimen is used to studying the failure process in brittle materials. The ring specimen is subjected to a compressive diametral load and contains two angled central cracks. Numerical modeling in this study is performed. It is shown that the obtained numerical results are in a very good agreement with the experiments. Effect of the crack orientation angle on the failure modes and loading-displace responses is discussed. In the range of 0°~40°, the fracture paths are curvilinear forms starting from the tip of pre-existing cracks and grow towards the loading points. For the crack orientation angle 90°, vertical fractures will split the specimen and the horizontal cracks do not influence the fracture process.
Brendan Gan, Yu Gan and Y. Yu
Y. B. Zhang et al., "Numerical Simulation of Ring-Shape Rock Failure under Compressive Loading", Advanced Materials Research, Vols. 378-379, pp. 15-18, 2012