Proceedings of the Korea Committee for Ocean Resources and Engineering Conference (한국해양공학회:학술대회논문집)

Korean Society of Ocean Engineers (한국해양공학회)
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Fatigue Study of K-Joints for Offshore Structures

해양구조물의 K-Joint 피로연구

  • IM SUNG-WOO (Research Institute of Industrial Science and Technology) ;
  • PARK RO-SIK (School of Transportation Systems Engineering, Ul-San University) ;
  • JO CHUL-HEE (Naval Architecture and Ocean Engineering Major, In-Ha University) ;
  • PARK KWAN-KYU (Naval Architecture and Ocean Engineering Major, In-Ha University)
  • 임성우 (포항산업과학연구원(RIST)) ;
  • 박노식 (울산대학교 수송시스템 공학부) ;
  • 조철희 (인하대학교 선박해양공학전공) ;
  • 박관규 (인하대학교 선박해양공학전공)
  • Published : 2004.11.01
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Abstract

The paper describes a test program on welded K-joints fabricated from circular hollow section brace members and chords made with API 2W 50 grade steel produced by POSCO. The K-joints were tested for three loading conditions at RIST. The specimens were tested in reaction frame that allowed vertical uniform loading to the structure. From the test, the crack initiation and development were observed and the fatigue failure could be predicted. The results were also compared with the provided S-N curves by DnV.

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