Proceedings of the KWS Conference (대한용접접합학회:학술대회논문집)

The Korean Welding and Joining Society (대한용접접합학회)
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An Experimental Study on the Characteristics of Residual Stresses in Welds of SM570-TMC Steels

SM570-TMC 강의 잔류응력 특징에 관한 실험적 연구

  • 박현찬 (중앙대학교 토목공학과) ;
  • 이진형 (중앙대학교 기술과학연구소) ;
  • 김재환 (중앙대학교 토목공학과) ;
  • 최의홍 (중앙대학교 토목공학과) ;
  • 최명기 (한국산업기술협회) ;
  • 장경호 (중앙대학교 건설환경공학과)
  • Published : 2005.06.23
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Abstract

Bridge constructed recently is preferred to have a long span and a simple structure detail considering not only functions as bridge but scenic beauty, maintenance, construction term and life cycle cost, etc. Therefore, it demands a high quality steel like a thick plate steel and a high performance steel. A TMCP steel produced by theme-mechanical control process is now spotlighted due to the weldability for less carbon equivalent. It improved at strength and toughness in microstructure. Resently the SM570-TMC steel, a high strength TMCP steel whose tensile strength is 600MPa, is developed and applied to steel structures. But, for the application of this steel to steel structures, it is necessary to elucidate not only the material characteristics but also the mechanical characteristic of welded joint. In this paper, we investigated the characteristics of residual stresses generated by welding of SM570-TMC steels through an experimental study

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