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Predicting the Influence of Residual Stresses on Brittle Fracture Using Local Approach

[+] Author Affiliations
Ali Mirzaee-Sisan

DNV Energy, London, UK

Saeid Hadidi-Moud, David Smith

University of Bristol, Bristol, UK

Paper No. PVP2008-61273, pp. 987-992; 6 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


This paper explores the application of the local approach to brittle fracture to predict the influence of residual stresses in a relatively thick pipe. Three different surface flaw sizes were assumed on the outside surface of the pipe and failure predictions were made using the local approach. Then the results of local approach prediction were compared with the well-known fracture assessment procedure, BS7910 which uses a failure assessment diagram (FAD). It has found that the local approach has an advantage of taking into account the details of stress re-distribution of residual stress around the crack tip compared to the conventional assessment procedure.

Copyright © 2008 by ASME



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