个人信息Personal Information
教授
博士生导师
硕士生导师
主要任职:President of international exchange committee of the Chinese Society of Rock Mechanics and Engineering CSRME
其他任职:国际岩石力学与岩石工程学会(ISRM)中国国家小组副主席
性别:男
毕业院校:东北大学
学位:博士
所在单位:土木工程系
办公地点:综合实验四号楼330
联系方式:tca@mail.neu.edu.cn
NUMERICAL SIMULATION ON FAILURE PROCESS OF RING-SHAPE SPECIMEN OF ROCK
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论文类型:会议论文
发表时间:2011-01-01
收录刊物:CPCI-S
页面范围:949-952
关键字:brittle materials; ring specimen; numerical simulation; parallel computation; rock failure
摘要:Crack propagation and collapse in engineering materials including rock and concrete can cause failure. Rock masses often contain a large number of natural fractures and cracks, which are usually known as candidate locations of rock failure. Knowledge of the rules of crack growth and coalescence is very important for the stability of rock masses or materials and for the safe design of structures in or on rocks. Numerical modeling in this study is accomplished using the finite element program RFPA(2D) (two-dimensional Rock Failure Process Analysis), which is fully parallelized with OpenMP directives on Windows to utilize the increased computational power of PCs. Modified ring shape specimens with two pre-existing cracks are used to studying the crack growth and the failure process. Effect of the crack orientation angle on the failure modes is discussed and the related rock failure mechanisms are clarified. Compared with the test results, the failure modes show in good conformity.