【摘要】 从岩石的细观非均匀性特点出发,应用弹性损伤力学,对岩石破裂过程分析数值(RFPA2D)模拟系统的本构关系进行了描述。用RFPA2D系统模拟了岩石试样在单轴或双轴载荷作用下的强度特征和破坏形态,通过与实验结果对比验证了该本构关系和数值模拟系统的合理性和有效性。-更多还原

【Abstract】 Based on the heterogeneous characteristics of rock at mesoscopic level, the constitutive law of mesoscopic elements used in RFPA2D is described with elastic damage mechanics. The RFPA2D is used to simulate the strength and failure patterns of rock specimen subjected to uniaxial or biaxial loading. The numerical results are compared well with the corresponding experimental results, which proves that the constitutive law as well as the numerical system (RFPA2D) are reasonable and effective in simulating the failure of rock under various plane stress conditions.更多还原