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Evaluation of Leak/Rupture Limit for Axially Through-Wall Notched Line Pipes Using J-Integral Resistance Curve

[+] Author Affiliations
Shinobu Kawaguchi, Naoto Hagiwara

Tokyo Gas Co., Ltd.

David L. Rudland, Gery M. Wilkowski

Engineering Mechanics Corporation of Columbus, Columbus, OH

Paper No. IPC2006-10505, pp. 613-619; 7 pages
  • 2006 International Pipeline Conference
  • Volume 3: Materials and Joining; Pipeline Automation and Measurement; Risk and Reliability, Parts A and B
  • Calgary, Alberta, Canada, September 25–29, 2006
  • Conference Sponsors: Pipeline Division
  • ISBN: 0-7918-4263-0
  • Copyright © 2006 by ASME


This paper investigated the applicability of the differential function of J-integral Resistance (J-R) curves, that is, dJ/da to predict the leak/rupture limit on X65 and X80 line pipes. The leak/rupture limit depended on the J-R curves of line pipes and was estimable using the dJ/da approach irrespective of the levels of the Charpy impact energy. It is noted that the dJ/da approach enables us to evaluate the leak/rupture limit of pipelines having a high Charpy impact energy, to which the Charpy impact energy-based equation is inapplicable.

Copyright © 2006 by ASME



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