Based on the polycrystalline representative element generated by the crystal plasticity theory,simulating tensile tests are conducted to obtain the crystalline plastic material parameters with macroscopic properties.Cumulative plastic strain is used as the fatigue indicator parameters to predict the fatigue life.The results show that the fatigue life prediced by the fatigue indictor parameter is within the error range of±2 times the fatigue life gained by the test,and the simulation result is within the acceptable range.
关键词
晶体塑性模型/疲劳指示因子/疲劳寿命预测
Key words
crystal plasticity model/fatigue indicator parameters/fatigue life predication
维普
万方数据