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Fatigue life estimation with censored data
International Journal of Fatigue ( IF 6 ) Pub Date : 2020-12-01 , DOI: 10.1016/j.ijfatigue.2020.105899
D. Gary Harlow

Abstract Estimation of fatigue life data which includes right censoring is challenging. The primary purpose of this paper is to incorporate right censoring into a phenomenological cumulative distribution function for fatigue life that includes a kernel that incorporates time dependent loading, mechanical breakdown, and statistical behavior. Because of its generality, the model is applicable for a variety of loading conditions. Specifically, it is a combination of traditional stress–life methods with a Weibull distribution function. The proposed distribution incorporates stress dependencies in the distribution parameters. The proposed methodology is validated using fatigue data for welded butt–joints.

中文翻译:

使用删失数据估算疲劳寿命

摘要 包括右删失在内的疲劳寿命数据估计具有挑战性。本文的主要目的是将右删失合并到疲劳寿命的现象学累积分布函数中,该函数包括一个包含时间相关载荷、机械故障和统计行为的内核。由于其通用性,该模型适用于多种载荷条件。具体来说,它是传统应力-寿命方法与威布尔分布函数的结合。建议的分布在分布参数中包含应力相关性。使用焊接对接接头的疲劳数据验证了所提出的方法。
更新日期:2020-12-01
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