温度作用下的岩石热弹塑性本构方程的研究

The Research on the Thermo-elasto-plastic Equation of the Rock under the Temperature Effect

分析研究了岩石在高温高压作用下的热弹塑性力学特性,研究了岩石的加、卸载过程,根据损伤力学的基本理论,推导了温度作用下的岩石热弹塑性力学特性本构方程。由于岩石的损伤演化规律和塑性应变的演化规律不完全独立,所以本构方程中只需引入塑性变形的屈服准则。

The property thermo-elasto-plastic properties of the rock under the high temperature are analyzed and researched in this paper. The loading and unloading processes of the rock are researched. Based on the damage theory, the thermo-elasto-plastic equation of the rock is derived.