Full Content is available to subscribers

Subscribe/Learn More  >

Application of Environmental Fatigue Penalty Factors and Implications for Design Analyses

[+] Author Affiliations
Mark A. Gray, E. Lyles Cranford, III

Westinghouse Electric Company, Madison, PA

Paul R. Donavin

American Electric Power, Buchanan, MI

Paper No. PVP2006-ICPVT-11-93982, pp. 205-212; 8 pages
  • ASME 2006 Pressure Vessels and Piping/ICPVT-11 Conference
  • Volume 1: Codes and Standards
  • Vancouver, BC, Canada, July 23–27, 2006
  • Conference Sponsors: Pressure Vessels and Piping Division
  • ISBN: 0-7918-4752-7 | eISBN: 0-7918-3782-3
  • Copyright © 2006 by ASME


A number of technical challenges have been identified in applying current methods to evaluate the effects of reactor water environment in fatigue evaluations of reactor components in license renewal applications. One challenge in using more conservative approaches is the large environmental penalty factor that may be calculated for stainless steels. The use of more sophisticated methods leads to more complex challenges, like the determination and application of transient strain rates required by the current proposed equations. For example, the definition of transients for component evaluations must consider competing effects of strain rate and stress range to assure a conservative design. As discussions extend to the possibility of addressing environmental effects in fatigue design requirements of the ASME Code, it is important to consider the implications of the challenges met in application of the current methods. This paper describes a plant-specific application of environmental fatigue penalty factors, the aspects of the challenges encountered in the application, and the ramifications of the various considerations on incorporation of fatigue environmental evaluations in future design requirements.

Copyright © 2006 by ASME
Topics: Fatigue , Design



Interactive Graphics


Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In