Journal of Applied Reliability (한국신뢰성학회지:신뢰성응용연구)

The Korean Reliability Society (한국신뢰성학회)
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Service Life Prediction of Components or Materials Based on Accelerated Degradation Tests

가속열화시험에 의한 부품·소재 사용수명 예측에 관한 연구

  • Kwon, Young Il (Department of Industrial Engineering, Cheongju University)
  • 권영일 (청주대학교 산업공학과)
  • Received : 2017.02.27
  • Accepted : 2017.05.15
  • Published : 2017.06.25
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Abstract

Purpose: Accelerated degradation tests can speed time to market and reduce the test time and costs associated with long term reliability tests to verify the required service life of a product or material. This paper proposes a service life prediction method for components or materials using an accelerated degradation tests based on the relationships between temperature and the rate of failure-causing chemical reaction. Methods: The relationship between performance degradation and the rate of a failure-causing chemical reaction is assumed and least square estimation is used to estimate model parameters from the degradation model. Results: Methods of obtaining acceleration factors and predicting service life using the degradation model are presented and a numerical example is provided. Conclusion: Service life prediction of a component or material is possible at an early stage of the degradation test by using the proposed method.

Keywords

References

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