Full Content is available to subscribers

Subscribe/Learn More  >

A Fracture Mechanics Evaluation of BWR Vessel Water Level Instrumentation Nozzle P-T Curve Assessment Including Impact of Irradiation Effects

[+] Author Affiliations
Hardayal S. Mehta, Lori J. Tilly, Donald A. Sampson

GE Hitachi Nuclear Energy, San Jose, CA

Paper No. PVP2012-78734, pp. 799-804; 6 pages
  • ASME 2012 Pressure Vessels and Piping Conference
  • Volume 1: Codes and Standards
  • Toronto, Ontario, Canada, July 15–19, 2012
  • Conference Sponsors: Pressure Vessels and Piping Division
  • ISBN: 978-0-7918-5500-3
  • Copyright © 2012 by ASME


This paper describes the evaluation performed to determine the bounding T-RTNDT for the Boiling Water Reactor (BWR) Water Level Instrumentation (WLI) nozzle for use in establishing reactor pressure vessel Pressure-Temperature (P-T) curves. The evaluation used finite element based fracture mechanics to augment the methods described in the ASME Boiler & Pressure Vessel Code, Section XI, Appendix G. A 3-D finite element linear elastic fracture mechanics analysis was conducted to determine the mode I stress intensity factor at the tip of a 1/4 thickness postulated flaw in the nozzle blend radius. Also included is a general discussion on the impact on the P-T curves of the postulated irradiation shift in RTNDT at the WLI nozzle.

Copyright © 2012 by ASME



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