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本文较为详细地综述了预测疲劳裂纹形成寿命的局部应力应变法，分析评论了各种算法的优劣，分析了三个试验和计算的结果，结果表明，瞬态应力-应变曲线和等效应变-寿命曲线的组合算法精度最好。
In this paper, the local stress-strain methods for predicting the fatigue life of fatigue cracks are reviewed in detail. The advantages and disadvantages of various algorithms are analyzed and analyzed. The results of three tests and calculations are analyzed. The results show that the transient stress-strain curves and equivalent strain The combination of life curve algorithm has the best accuracy.