岩石破裂过程的数值模拟研究

NUMERICAL SIMULATION ON FAILURE PROCESS OF ROCK

考虑不同粒度组成和缺陷分布的岩石 ,对其裂纹扩展、演化过程的影响 ,建立数学模型 ,应用 RFPA2 D程序分析了均质度对岩石类脆性材料在外载作用下的裂纹扩展、演化过程的影响 ,和相关的实验结果进行对比 ,指出了均质度对材料破坏过程的决定性影响。

Taking account of the influence of different grain size and distribution of the flaws on the propagation process of the cracks in rock, a mathematical model is established. Then the RFPA 2D program is used to analyze the influences of different homogeneity on the propagation and evolution of cracks in the rock like brittle materials under external load. By comparing with corresponding experimental results, the conclusion that the homogeneity has a great effect on the failure process of materials is drawn.