Journal of the Korean Society of Manufacturing Technology Engineers (한국생산제조학회지)

The Korean Society of Manufacturing Technology Engineers (한국생산제조학회)
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Prediction of Fatigue Design Life in Magnesium Alloy by Failure Probability

파손확률에 따른 마그네슘합금의 피로설계수명 예측

  • 최선순 (삼육대학교 카메카트로닉스학과)
  • Received : 2010.10.25
  • Accepted : 2010.11.25
  • Published : 2010.12.15
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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

References

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