考虑饱和-非饱和渗流、温度和应力耦合的三维有限元程序研制

Program development for 3D FEM of coupling saturated-unsaturated seepage, temperature and stress

在探索多场耦合理论基础上,研制出了一个考虑饱和-非饱和渗流场和温度场对应力场作用的三维弹塑性有限元程序,该程序采用了以下简化假设:不考虑力学过程和渗流过程对温度场产生的影响,而只考虑变温对力学过程产生的影响;不考虑力学过程和温度场对渗流场产生的影响,而只考虑渗流场对力学过程产生的影响。经与弹性力学解析解对比,验证了该程序计算结果是合理的。

The technique of the3D finite element method (FEM) of coupling saturated-unsaturated seepage, temperature and stress is studied; and the corresponding program for the FEM is developed. The following two hypotheses are used to simplify the system. The infection that the temperature works on the stress is considered while the infection that the stress and the seepage work on the temperature is not considered. The infection that the seepage works on the stress is considered while the infection that the stress and the temperature work on the seepage is not considered. The program is validated by comparing its simulation results and the result of elasticity mechanics.