Journal of Welding and Joining

The Korean Welding and Joining Society (대한용접접합학회)
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Influence of Welding Residual Stress on the Mechanical Behavior of Externally Loaded Dissimilar SS400-STS304 Steel Weldment

SS400-STS304 이재용접부의 외력작용시 용접잔류응력 특성

  • Bang, Hee-Seon (Dept. of Naval Architecture & Ocean Engineering, Chosun University) ;
  • Bang, Han-Sur (Dept. of Naval Architecture & Ocean Engineering, Chosun University) ;
  • Kim, You-Chul (Joining & Welding Research Institute, Osaka University) ;
  • Joo, Sung-Min (Welding Center, Research Institute of Industrial Science and Technology) ;
  • Joa, Soon-Won (Dept. of Naval Architecture Engineering, Gyeongnam Provincial Geochang College) ;
  • Ro, Chan-Seoung (Dept. of Naval Architecture & Mechanics Engineering, Chosun College of Science and Technology)
  • 방희선 (조선대학교 공과대학 선박해양공학과) ;
  • 방한서 (조선대학교 공과대학 선박해양공학과) ;
  • 김유철 (오사카대학교 접합과학연구소) ;
  • 주성민 (포항산업과학연구원 용접센터) ;
  • 좌순원 (경남도립거창대학 조선공학과) ;
  • 노찬승 (조선이공대학 선박해양.기계공학과)
  • Published : 2009.10.31
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Abstract

Thermal and mechanical characteristics in dissimilar SS400-STS304 steel weldment have been investigated by 3D thermal elastic-plastic analysis. Moreover, the influence of welding residual stresses on the mechanical behaviour of this welded joint, by applying superimposed external load (tension load) was determined. The residual stresses obtained by numerical simulation were compared with the experimentally measured results. The FE results were in good agreement with the measured values. The mechanical test (hardness, tensile test) and metallurgical analysis was carried out to ensure the weld integrity. Hence, possibility of applying SS400-STS304 dissimilar steels in industries has been established.

Keywords

References

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