The Determination of Confidence Limits for Weibull Distribution of Three-parameter and the Fitting of C-R-S-N Curves

Tan Jiazhen; Bian Xinxiao

doi:10.13374/j.issn1001-053x.1994.05.005

Volume 16 Issue 5

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Article Navigation > Chinese Journal of Engineering > 1994 > 16(5): 425-430

Tan Jiazhen, Bian Xinxiao. The Determination of Confidence Limits for Weibull Distribution of Three-parameter and the Fitting of C-R-S-N Curves[J]. Chinese Journal of Engineering, 1994, 16(5): 425-430. doi: 10.13374/j.issn1001-053x.1994.05.005

Citation:

Tan Jiazhen, Bian Xinxiao. The Determination of Confidence Limits for Weibull Distribution of Three-parameter and the Fitting of C-R-S-N Curves[J]. Chinese Journal of Engineering, 1994, 16(5): 425-430. doi: 10.13374/j.issn1001-053x.1994.05.005

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The Determination of Confidence Limits for Weibull Distribution of Three-parameter and the Fitting of C-R-S-N Curves

doi: 10.13374/j.issn1001-053x.1994.05.005

Mechanical Engineering College, USTB, Beijing 100083

Received Date: 1991-11-08
Available Online: 2021-11-13

Abstract

Abstract

The paper discusses the use of Weibull distribution of three-parameter to describe the fatigue life of machine element, and proposes a new method to fitting R-S-N curves under certain confidence. The parameters of three-parameter Weibull distribution are estimated by optimization, based on the samples of stress-life from tests. The fatigue life at each different reliability is then calculated under centain confidance. Thereafter the C-R-S-N curves can be fitted and the corresponding fatigue limit stress is evaluated
- Weibull distribution,
- confidence limit reliability,
- fatigue life