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Assessment of Creep and Creep-Fatigue Crack Growth Following the R5 Procedures

[+] Author Affiliations
R. A. Ainsworth, P. J. Budden, D. W. Dean, M. J. H. Fox, M. P. O’Donnell

British Energy Generation, Ltd., Gloucester, UK

J. M. H. Dean

BNFL Magnox Generation, Berkeley, UK

I. W. Goodall

Imperial College London, London, UK

D. G. Hooton

Serco Assurance, Warrington, UK

Paper No. PVP2003-2031, pp. 97-104; 8 pages
  • ASME 2003 Pressure Vessels and Piping Conference
  • Flaw Evaluation, Service Experience, and Reliability
  • Cleveland, Ohio, USA, July 20–24, 2003
  • Conference Sponsors: Pressure Vessels and Piping Division
  • ISBN: 0-7918-4154-5
  • Copyright © 2003 by ASME


Parts of the R5 high temperature assessment procedures address creep and creep-fatigue crack growth. The procedures were developed some years ago as separate approaches for creep crack growth (R5 Volume 4) and creep-fatigue crack growth (R5 Volume 5). A major revision to these procedures has recently been completed. This unifies the separate approaches into a single procedure for creep-fatigue crack growth (R5 Volume 4/5). The revision restructures the procedure for easier application and includes a number of technical developments, including criteria for deciding when creep-fatigue interactions are important. This paper describes in outline the new R5 creep-fatigue crack growth procedure.

Copyright © 2003 by ASME



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