대한조선학회논문집 (Journal of the Society of Naval Architects of Korea)

  • 제45권1호
  • /
  • Pages.87-92
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  • 2008
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  • 1225-1143(pISSN)
  • /
  • 2287-7355(eISSN)
대한조선학회 (The Society of Naval Architects of Korea)
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Longi-web 연결부의 피로강도 평가에 관한 실험적 연구

An Experimental Study for the Fatigue Strength Assessment of Longi-web Connections

  • 강성원 (부산대학교 조선해양공학과) ;
  • 김정환 (대우조선해양(주) 구조R&D) ;
  • 김광석 (대우조선해양(주) 구조R&D) ;
  • 강중규 (대우조선해양(주) 구조R&D) ;
  • 허주호 (대우조선해양(주) 구조R&D) ;
  • 김명현 (부산대학교 조선해양공학과)
  • Kang, Sung-Won (Dept. of Naval Architecture & Ocean Engineering, Pusan National University) ;
  • Kim, Jeong-Hwan (Daewoo Shipbuilding & Marine Engineering Co. Ltd., Ship and Marine Structure R&D Team) ;
  • Kim, Kwang-Seok (Daewoo Shipbuilding & Marine Engineering Co. Ltd., Ship and Marine Structure R&D Team) ;
  • Kang, Joong-Kyoo (Daewoo Shipbuilding & Marine Engineering Co. Ltd., Ship and Marine Structure R&D Team) ;
  • Heo, Joo-Ho (Daewoo Shipbuilding & Marine Engineering Co. Ltd., Ship and Marine Structure R&D Team) ;
  • Kim, Myung-Hyun (Dept. of Naval Architecture & Ocean Engineering, Pusan National University)
  • 발행 : 2008.02.29
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초록

In the load-carrying fillet weldments, which are common in ship structures, fatigue cracks can occur at the weld root, in addition to the weld toe. In particular, fatigue cracks originating from the weld root are difficult to detect and cause a significant reduction in the fatigue strength of a weldment. Therefore, it is important to note the fatigue failure mode of load-carrying fillet weldment. In this study, a series of fatigue test was carried out for the fatigue strength evaluation of longi-web connections that are typical kinds of the load-carrying fillet weldment.

키워드

참고문헌

  1. DNV, 2001, Classification Note No. 30.7,'Fatigue Assessment of Ship Structures,' pp 42-44
  2. Ha, C.I., Kang, S.W., Kim, M.H., Kim, M.S., Sohn, S.Y. and Heo, J.H., 2006,'A Comparative Study for the Fatigue Assessment of Fillet Weldments Using Structural Stress and Hot Spot Stress,' Journal of the Society of Naval Architects of Korea, Vol. 43, No. 4, pp. 476-483 https://doi.org/10.3744/SNAK.2006.43.4.476
  3. ISSC, 2003,'Fatigue Strength Assessment,' Proceedings of the 15th ISSC, Vol. 2, pp 293
  4. Kang, S.W., Han, S.H., Kim, W.S. and Paik, Y. M., 2003,'Fatigue Strength of Fillet Weldment under Out-of-plane Bending Load,' Journal of the Society of Naval Architects of Korea, Vol. 40, No. 1, pp. 28-35
  5. Um, D.S., Kang, S.W. and Kim, Y.K., 1985,'Fracture Mechanics Approach to Bending Fatigue Behavior of Cruciform Fillet Welded Joint,' Journal of the Korean Welding Society, Vol. 3, No. 2, pp. 52-63