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Statistical Properties of the Weibull Cumulative Exposure Model
en
Komori Yoshio
This article is aimed at the investigation of some properties of a Weibull cumulativeexposure model on multiple-step step-stress accelerated life test data. Although themodel includes a probabilistic idea of Miner's rule in order to express the e ect ofcumulative damage in fatigue, it is shown that only this is not su cient to accountfor degradation of specimens and the shape parameter must be larger than 1. Fora random variable obeying the model, its average and standard deviation are investigatedon a various sets of parameter values. In addition, an example of themaximum likelihood estimation is given on an actual data set.
Technical Report in Computer Science and Systems Engineering
2003-03-25
九州工業大学
1344-8803
Department of Control Engineering and Science, Kyushu Institute of Technology
九州工業大学情報工学部 制御システム工学科
Technical Report