Transactions of the Korean Society of Machine Tool Engineers (한국공작기계학회논문집)

The Korean Society of Manufacturing Technology Engineers (한국생산제조학회)
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Effect of Residual Stress on Fatigue Characteristics at the Welds of Stainless Steel

스테인리스강 용접부의 잔류응력이 피로특성에 미치는 영향

  • 권종완 (경일대학교 기계공학부) ;
  • 양현태 (경일대학교 기계기술연구소)
  • Published : 2001.10.01
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Abstract

In the weldments, the crack propagation rate is changed due to the residual stress. The crack propagation rate is high in the region with the residual stress. However it shows the same behavior with the base metal in the region that does not include the residual stress. The fatigue crack growth rate for the material with residual stresses can be predicted more precisely by using the effective stress ratio. The difference between experimental results and prediction results seems to be due to the redistribution of the residual stresses and microstructural change.

Keywords

References

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