材料的疲劳寿命是机械可靠性设计的基础,也是疲劳性能研究的主要内容.大量的研究结果表明疲劳寿命具有离散性的特点,并且符合一定的统计分布规律.概述了材料疲劳寿命研究的重要性,分析了材料微观结构及实验模型对疲劳寿命的影响以及疲劳寿命研究的数理统计基础,分别介绍了正态分布和威布尔分布的特点,综述了数据处理方法在疲劳寿命研究中的具体应用.
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