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Proposal of a Guideline to Classify Planar/Non-Planar Flaw in Wall Thinned Straight Pipes Under Bending Load

[+] Author Affiliations
Toshiyuki Meshii

University of Fukui, Fukui, Japan

Paper No. PVP2011-57113, pp. 1379-1384; 6 pages
  • ASME 2011 Pressure Vessels and Piping Conference
  • Volume 6: Materials and Fabrication, Parts A and B
  • Baltimore, Maryland, USA, July 17–21, 2011
  • Conference Sponsors: Pressure Vessels and Piping Division
  • ISBN: 978-0-7918-4456-4
  • Copyright © 2011 by ASME


In this paper, an idea to rationally classify planar/non-planar flaw in wall thinned straight pipes under bending load was proposed, based on the fracture mode (cracking/non-cracking) observed in experiments. This cracking phenomenon was correlated with the aspect ratio of the flaw planar configuration. Finally, a guideline to classify this planar/ non-planar flaw based on flaw aspect ratio was proposed.

Copyright © 2011 by ASME
Topics: Stress , Pipes



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