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Framework to Correlate Test Specimen Thickness Effect on Fracture Toughness With T33-Stress

[+] Author Affiliations
Toshiyuki Meshii, Tomohiro Tanaka

University of Fukui, Fukui, Japan

Paper No. PVP2011-57114, pp. 1109-1117; 9 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


This paper considered the test specimen thickness effect on the fracture toughness of a material Jc , in the transition temperature region, for CT and 3PB specimen. Framework to correlate test specimen thickness effect on fracture toughness with T33 -stress, which is the out-of-plane elastic crack tip constraint parameter, was proposed. The results seemed to indicate a possibility of improving the existing methods to correlate the fracture toughness obtained by test specimen with the toughness of actual cracks found in the structure, in use of T33 –stress.

Copyright © 2011 by ASME



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