等W线上最大环向拉应力理论求解Ⅰ-Ⅱ复合型裂纹断裂角

Solving the Fracture Angle of Ⅰ-Ⅱ Compound Crack with the Theoryof the Maximum Circle Tensile Stress on Curve of Constant-W

给出利用等W线上最大环向拉应力理论求解Ⅰ-Ⅱ复合型裂纹断裂角的简例,将结果与运用最大拉应力理论求得结果比较。分析计算表明,用这种方法求解断裂角较为合理。

A simplified example is given for solving the fracture angle of Ⅰ-Ⅱ compound crack adopting the theory of the maximum circumferential tensile stress on curve of constant-W. Through a comparison between the result with that of using the theory of the maximum tensile stress theory, the calculation and analysis show that this new method is more reasonable.