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Fracture Mode Prediction Method for Pipe With Wall-Thinning by Using the History Data of Strain Ratio

[+] Author Affiliations
Irwan Herman, Toshiyuki Meshii

University of Fukui, Fukui, Japan

Paper No. PVP2008-61908, pp. 911-917; 7 pages
  • ASME 2008 Pressure Vessels and Piping Conference
  • Volume 6: Materials and Fabrication, Parts A and B
  • Chicago, Illinois, USA, July 27–31, 2008
  • Conference Sponsors: Pressure Vessels and Piping
  • ISBN: 978-0-7918-4829-6
  • Copyright © 2008 by ASME


In this study, based on the burst test results of pipes with wall-thinning, we have investigated the effect of flaw length δz and pipe size (mean radius Rm ) on the burst pressure by using finite element analysis (FEA). Then, the history data of strain ratio εz /εθ along the load increment was used for the fracture mode prediction. Moreover, effect of the wall thickness at the flaw portion t1 on the fracture mode was investigated. Finally, fracture mode prediction method for pipes with wall-thinning was proposed.

Copyright © 2008 by ASME



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