In this thesis, the stress intensity factors of top-down cracks caused by loading are calculated using threedimensional finite element model and compared to the results of plane strain model.
Introduced in this paper are two fracture critical surfaces of threedimensional mixed mode obtained from the theory of strain energy density factor and the theory of maximum tensile strain.
本文对按应变能密度理论和最大拉应变理论所推导出的两个三维复合型断裂临界曲面作了简要介绍。
3
The paper studies distribution law of stress and strain of gate-dam under static regime with three-dimensional finite element method.