Journal of Applied Reliability (한국신뢰성학회지:신뢰성응용연구)

The Korean Reliability Society (한국신뢰성학회)
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Accelerated Heat Aging Test for Predicting Useful Lifetime of Elastomeric Rearing

가속 열 노화시험에 의한 탄성받침용 합성고무의 수명 예측에 관한 연구

  • Park, K.H. (Relibility Assesment team, Korea Testing and Research Institute for Chemical Industry) ;
  • Park, J.H. (Relibility Assesment team, Korea Testing and Research Institute for Chemical Industry) ;
  • Lee, H.H. (Relibility Assesment team, Korea Testing and Research Institute for Chemical Industry) ;
  • Kwon, Y.I. (Department of Industrial and Information Systems Engineering, Cheongju University)
  • 박광화 (한국화학시험연구원 신뢰성평가팀) ;
  • 박준형 (한국화학시험연구원 신뢰성평가팀) ;
  • 이하영 (한국화학시험연구원 신뢰성평가팀) ;
  • 권영일 (청주대학교 산업정보시스템공학과)
  • Published : 2004.10.01
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Abstract

We performed the heat aging test to predict the useful lifetime of Elastomeric Bearing Chloroprene Rubber (CR) used for supporting bridge. During the test, we measured elongation that are influenced by temperature and aging time. The failure of a test piece is defined as the point at which the elongation reaches to 75% of the initial value. This failure criterion is based on KS F 4420: 1998 (Elastomeric Bearing for bridge). Through the accelerated heat aging test, we found that the Arrhenius relationship and the Weibull lifetime distribution are appropriate as the life-temperature relationship and lifetime distribution of the CR, respectively. Using the Arrhenius -Weibull model, the parameters of the model are estimated and the lifetime of the CR at use condition is predicted.

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