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Prediction of Fatigue Design Life in Magnesium Alloy by Failure Probability  

Choi, Seon-Soon (삼육대학교 카메카트로닉스학과)
Publication Information
Journal of the Korean Society of Manufacturing Technology Engineers / v.19, no.6, 2010 , pp. 804-811 More about this Journal
Abstract
The fatigue crack propagation is stochastic in nature, because the variables affecting the fatigue behavior are random and have uncertainty. Therefore, the fatigue life prediction is critical for the design and the maintenance of many structural components. In this study, fatigue experiments are conducted on the specimens of magnesium alloy AZ31 under various conditions such as thickness of specimen, the load ratio and the loading condition. The probability distribution fit to the fatigue failure life are investigated through a probability plot paper by these conditions. The probabilities of failure at various conditions are also estimated. The fatigue design life is predicted by using the Weibull distribution.
Keywords
Fatigue; Life prediction; Magnesium alloy; Weibull distribution; Failure probability;
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Times Cited By KSCI : 3  (Citation Analysis)
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