关于黑色金属和有色金属材料低周疲劳性能的技术报告

[中文适用范围]： 本 SAE 信息报告概述了为避免疲劳失效提供设计指导的信息。当然，这份报告很简短，但它确实为解决复杂的疲劳问题提供了基础。这里提供的信息可用于疲劳寿命的初步设计估计、材料的选择以及使用载荷和/或应变数据的分析。所提供的数据适用于“低周期”或用于预测疲劳行为的应变控制方法。请注意，这些方法可能不适用于具有内部缺陷@的材料，例如铸铁@，它们表现出不同的拉伸和压缩应力应变行为。 [外文原描述]： Information that provides design guidance in avoiding fatigue failures is outlined in this SAE Information Report. Of necessity, this report is brief, but it does provide a basis for approaching complex fatigue problems. Information presented here can be used in preliminary design estimates of fatigue life, the selection of materials and the analysis of service load and/or strain data. The data presented are for the “low cycle” or strain-controlled methods for predicting fatigue behavior. Note that these methods may not be appropriate for materials with internal defects, such as cast irons, which exhibit different tension and compression stress-strain behavior.Cross Reference: 710151,710152,710153,720265,830175,ASTMSTP378,ASTMSTP465