以2E12铝合金光滑疲劳实验为基础,结合有限元软件ABAQUS和疲劳分析软件MSC.Fatigue,详细地介绍了疲劳寿命预测的流程和实现过程.进行疲劳寿命分析,分析结果表明孔径与板长之比D/L对板材疲劳寿命有显著的影响,D/L与对数寿命呈幂函数关系.数值模拟结果与理论计算结果基本相吻合,进行疲劳寿命分析,分析结果表明孔径与板长之比D/L对板材疲劳寿命有显著的影响,D/L与对数寿命呈幂函数关系.
On the basic of the fatigue tension test of aluminum alloy 2E12, the process and realization process of fatigue life prediction is deeply introduced by using FEM software ABAQUS and fatigue analysis software MSC.Fatigue. Numerical simulation results are consistent with the theoretical calculation results and the reliability of numerical simulation to analyze the fatigue life of products is verified. Then aluminum alloy 2E12 plates models with different aperture to analyze fatigue life are created. The results show that the ratio of aperture and the length has a marked impact on fatigue life and D/L has power function relation with logarithmic life.
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