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本文回顾了金属材料疲劳失效准则近年来的发展,着重分析了近年提出的Bagci疲劳极限曲线方程及其局限性。文中提出了一个新的金属材料疲劳失效准则——统一准则,并介绍了该准则的实际应用方法。该准则适应范围广、精确度高,而且不会超出屈服强度线,可以在一般机械零件的疲劳设计中推广使用。
In this paper, the development of fatigue failure criterion of metallic materials is reviewed in recent years, and the Bagci fatigue limit curve equation and its limitations proposed in recent years are emphatically analyzed. In this paper, a new criterion for fatigue failure of metallic materials is proposed, and the practical application of this criterion is introduced. The guidelines to adapt to a wide range of high accuracy, and will not exceed the yield strength line, can be used in general mechanical parts of the fatigue design.