Proceedings of the KSME Conference (대한기계학회:학술대회논문집)

The Korean Society of Mechanical Engineers (대한기계학회)
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Effect of Mean Stress on the Fatigue Life of Engine Mount and Life Prediction

방진고무부품 피로수명에 끼치는 평균하중의 영향 및 피로수명 예측

  • 이학주 (한국기계연구원 구조시스템연구부) ;
  • 김완두 (한국기계연구원 구조시스템연구부) ;
  • 최병익 (한국기계연구원 구조시스템연구부) ;
  • 우창수 (한국기계연구원 구조시스템연구부) ;
  • 김정엽 (한국기계연구원 구조시스템연구부) ;
  • 고승기 (군산대학교 기계공학부)
  • Published : 2001.11.01
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Abstract

Effect of mean stress on the fatigue life of natural rubber for engine mount was investigated. Fatigue damage parameter based on the maximum Green-Lagrange strain was employed to account for the effect of mean stress. A procedure to predict the fatigue life of rubber components based on the maximum Green-Lagrange strain method was proposed. Nonlinear finite element analysis and fatigue test of jang-gu shape specimen were conducted to predict the fatigue life of engine mount. Predicted fatigue lives have a good agreement with tested lives within a factor of 3.

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