【摘要】 由于疲劳试验数据常常有很大的分散性 ,因此 ,只有用统计分析的方法处理这些数据才能够对材料或构件的疲劳性能有比较清楚的了解。本文中主要讨论利用正态分布理论进行对数疲劳寿命 lg N的统计分析 ,即给定疲劳寿命下的存活 (或破坏 )概率估计。更多还原

【Abstract】 Generally,the experimental data obtained from a fatigue test of a kind of material or structural component has a very obvious dispersing feature,so a clear understanding to the fatigue property of material or structural component can only be realized when processing the data by using the method of mathematical statistics. This paper mainly discusses the problem of how to define the survival (or breaking) probability estimation under the normal fatigue life of material by means of statistical analysing to the logarithm fatigue life (lgN) by using the theory of Normal Distribution.更多还原