Introduced in this paper are two fracture critical surfaces of three dimensional mixed mode obtained from the theory of strainenergy 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。
2
Used the maximum strain-energytheory and strength limit analytic method to check the important part such as sleeve, end-plate, etc.
运用最大应变能理论和强度极限分析法，对简体、端板等重要部件进行了强度校核。
3
The thesis recommended the theory of minimum strainenergy, which says the total structural strain energy can be changed by the increase and decrease of constraint number.