Journal of Welding and Joining

The Korean Welding and Joining Society (대한용접접합학회)
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A Study of the Thickness Effect using Structural Stress Approach for Fillet Welded Joints

구조 응력 기법을 적용한 필릿 용접부 두께 지수 산정에 관한 연구

  • Xin, Wen-Jie (Dept. of Naval Architecture and Ocean Engineering, Pusan University) ;
  • Oh, Dong-Jin (Dept. of Naval Architecture and Ocean Engineering, Pusan University) ;
  • Kim, Myung-Hyun (Dept. of Naval Architecture and Ocean Engineering, Pusan University)
  • 신문걸 (부산대학교 공과대학 조선해양공학과) ;
  • 오동진 (부산대학교 공과대학 조선해양공학과) ;
  • 김명현 (부산대학교 공과대학 조선해양공학과)
  • Received : 2014.01.03
  • Accepted : 2014.02.28
  • Published : 2014.04.30
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Abstract

In this study, non-load-carrying fillet welded joints fabricated using EH grade-steel are evaluated with the structural stress approach. The thickness effect was investigated by a study on welded steel joints with thickness ranging from 25 to 80mm. As-welded joint for main plate thickness of 25 to 80mm, the fatigue strength is reduced gradually. On the other hand, in case of main plate thickness of 25 to 80mm, the structural stress concentration factor increases gradually. As a result, for structural stress approach, thickness effect is not required for correction. Based on these results, a new evaluation fillet welded joint for fatigue design purposes has been proposed FAT 125.

Keywords

References

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