Proceedings of the Computational Structural Engineering Institute Conference (한국전산구조공학회:학술대회논문집)

Computational Structural Engineering Institute of Korea (한국전산구조공학회)
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Buckling Behavior of API-X80 Linepipe

API-X80 라인파이프의 좌굴 안정성 평가

  • 조우연 ((재)포항산업과학연구원 강구조연구소 토목구조연구실) ;
  • 안성수 (포스코 기술연구소 후판연구그룹) ;
  • 윤태양 ((재)포항산업과학연구원 강구조연구소 토목구조연구실) ;
  • 유장용 (포스코 기술연구소 후판연구그룹)
  • Published : 2007.04.12
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Abstract

The objective of this paper is to present the results of an experimental and a finite-element investigation into the behavior of X80 grade pipes subjected to bending. For the pipe specimens comprising the test series, different D/t is applied to be representative of those that can be expected in the field. Results from the numerical models are checked against the observations in the testing program and the ability of numerical solutions to predict pipe moment capacity. curvatures. and buckling modes is established. A finite-element model was developed using the finite-element simulator to predict the local buckling behavior of pipes. The comparison between the numerical and the experimental results demonstrates the ability of the analytical model to predict the local buckling behavior of pipes when deformed well into the post-yield range.

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