한국정밀공학회:학술대회논문집 (Proceedings of the Korean Society of Precision Engineering Conference)
- 한국정밀공학회 2005년도 춘계학술대회 논문집
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- Pages.337-340
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- 2005
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- 2005-8446(pISSN)
유한요소법에 의한 피로균열 진전 시뮬레이션
Simulation of Fatigue Crack Propagation by Finite Element Analysis
초록
The effect of residual stress on fatigue crack growth was investigated in terms of finite element analysis. Simulations were performed on a CT specimen in plane strain. An interface-cohesive element that accounts for damage accumulation due to fatigue along the notch direction has been used. Numerical results show that fatigue crack growth rate slows down when compressive residual stress field exists in front of the crack tip.
키워드