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Effects of Local Metal Loss on Deformability of Line Pipes Subjected to Compressive Load

[+] Author Affiliations
Yoshikazu Hashimoto, Hiroshi Yatabe, Naoto Hagiwara

Tokyo Gas Company, Ltd., Yokohama, Japan

Noritake Oguchi

Tokyo Gas Company, Ltd., Tokyo, Japan

Paper No. OMAE2005-67280, pp. 129-134; 6 pages
  • ASME 2005 24th International Conference on Offshore Mechanics and Arctic Engineering
  • 24th International Conference on Offshore Mechanics and Arctic Engineering: Volume 3
  • Halkidiki, Greece, June 12–17, 2005
  • Conference Sponsors: Ocean, Offshore and Arctic Engineering Division
  • ISBN: 0-7918-4197-9 | eISBN: 0-7918-3759-9
  • Copyright © 2005 by ASME


In this paper, the deformability of line pipe with local metal loss was examined. A full-scale experiment and a finite element (FE) analysis were carried out for line pipe with local metal loss subjected to an axial compressive load. As a result, a good agreement was obtained between the analytical and experimental results. This indicated that the present analytical method was applicable to evaluate the deformability of line pipes with local metal loss subjected to a large ground movement. Parametric studies were then conducted to clarify the relationship between the geometry of the local metal loss and the deformability using the FE analytical method.

Copyright © 2005 by ASME
Topics: Metals , Stress , Pipes



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