基于不同分布的岩石损伤本构模型的比较

Comparison of damage constructive model of rock mass based on different distribution

利用统计损伤力学的理论,建立了岩石破坏过程中的损伤统计本构模型,并对两个本构模型进行了验证和比较分析,结果表明:在弹性阶段,两种模型的理论曲线均与试验实测曲线具有较高的吻合度;从塑性阶段开始,两个模型的理论曲线与试验曲线之间的差别开始加大。

With the theory of statistic damage mechanics, the paper establishes the statistic damage constructive model in the rock mass, makes exemplification and comparison on the two constructive models. The results show that, the coincidence of the theoretical curve and the meastared curve between the two models is high at the elastic stage while the difference begins to increase from the plastic stage.