摘要
改进的岩体屈服准则集合了德鲁克-普拉格(D-P)屈服准则和摩尔-库伦(M-C)屈服准则的优点,计算结果更加符合实际,同时还避免了角点缺陷。将此改进准则开发进有限元程序中,通过一个小的三维有限元模型计算分析对比发现,改进的岩体屈服准则计算结果和理论规律相一致,说明了程序开发的正确性,在工程数值模拟计算中具有一定的实际应用意义。
The improved yield criterion of rock mass combines the advantages of Drucker-Prager yield function and MohrCoulomb yield criterion, which can get more realistic calculation results and avoid the angular point defects. The finite element program of improved yield criterion is developed and a case is calculated by a small three dimensional finite element model. The comparison between calculation results show that the calculation results of improved yield criterion are in line with the theoretical analyses, which proves the validity of program development. The finite element program of improved yield criterion has a certain practical significance in engineering numerical simulation.
出处
《水力发电》
北大核心
2016年第4期41-44,52,共5页
Water Power
基金
国家自然科学基金资助项目(51579191
51209164)
关键词
屈服准则
角点缺陷
π平面
有限元
yield criterion
angular point defect
π plane
finite element
