Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Stress Modeling for Cyclic Fatigue Life Prediction of Alumina Ceramics

알루미나 세라믹스의 반복 피로 수명 예측을 위한 응력 모델

  • 이홍림 (연세대학교 세라믹공학과) ;
  • 박성은 (연세대학교 세라믹공학과) ;
  • 한봉석 (연세대학교 세라믹공학과)
  • Published : 1994.10.01
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Abstract

Cyclic fatigue experiment was carried out to predict the life time of alumina ceramics. Four kinds of model were suggested to obtain the adequate representative static stress corresponding to the cyclic stress applied to the alumina specimens. Arithmetic mean stress model gives 21.81 of the crack growth exponent, integrated stress model gives 22.15, maximum stress model gives 24.57, and equivalent static stress model gives 24.43. It is considered that the equivalent static stress model is the most reasonable and gives the best adequate crack growth exponents value.

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References

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