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Validation of an Estimation Procedure to Predict the Quasi-Static Brittle-to-Ductile Fracture Initiation Transition Temperature (FITT) for Ferritic Piping

[+] Author Affiliations
Craig Williams, Bud Brust, Paul Scott

Battelle Columbus, Columbus, OH

Dave Rudland, Gery Wilkowski

Engineering Mechanics Corporation of Columbus, Columbus, OH

Paper No. PVP2005-71302, pp. 591-599; 9 pages
  • ASME 2005 Pressure Vessels and Piping Conference
  • Volume 6: Materials and Fabrication
  • Denver, Colorado, USA, July 17–21, 2005
  • Conference Sponsors: Pressure Vessels and Piping Division
  • ISBN: 0-7918-4191-X | eISBN: 0-7918-3763-7
  • Copyright © 2005 by ASME


This work was conducted in order to validate the flaw evaluation criteria for class 2, 3, and balance of plant piping in nuclear power plants. A methodology was developed as part of the Battelle Integrity of Nuclear Piping (BINP) program for predicting fracture initiation transition temperature (FITT) for a surface crack in a pipe from the 85% shear area transition temperature from Charpy specimen data. The predictive relationship is described in a separate paper in this conference [1]. In order to validate this methodology a series of Charpy, dynamic tear test (DTT), compact (tension) (CT), single-edge-notch [tension] (SEN(T)), and full-scale circumferential surface-cracked pipe experiments were conducted at different temperatures. As part of this paper, the results from these tests, along with their potential impact on the validation procedure to predict the quasi-static brittle-to-ductile FITT will be discussed.

Copyright © 2005 by ASME



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