STRUCTURAL INTEGRITY ANALYSIS FOR EXPOSURE TO ELEVATED TEMPERATURES IN THE POINT LEPREAU IRRADIATED FUEL BAY
36th Annual CNS Conference - 2016 June 19-22


Presented at:
36th Annual CNS Conference
2016 June 19-22
Location:
Toronto, Canada
Session Title:
Session T2B: Plant Life Extension 1

Authors:
H. Mohammed (Amec Foster Wheeler)
W. Mekky (Amec Foster Wheeler)
M. Moland (New Brunswick Power)
D. Mullin (New Brunswick Power)
  

Abstract

In response to the March 11, 2011, Fukushima Daiichi accident, Point Lepreau Generating Station performed a structural integrity analysis of its irradiated fuel bay under elevated temperatures up to and including boiling.  As a typical CANDU-6 in-ground fuel bay design, the objective of the analysis was to estimate by a detailed three-dimensional nonlinear finite element analysis the sustained concrete cracking and corresponding stress state due to a beyond design basis temperature increase.  This was done to obtain a more reliable simulation of the reinforced concrete structural behaviour as well as information on the structural degradation under the imposed structural and thermal loading conditions if they occur during the temperature rise of interest.  A second objective was to estimate the expected leakage rate from the fuel bay due to any through wall cracking identified in the analysis.  In this paper, the finite element analysis methodology and its results are discussed.

 

Individual Conference-Paper Copies (Electronic Where Available):

  • For CNS members, the first 5 copies per calendar year are free, and additional copies are $10 each.
  • For non-members, the price is $25 for the first Conference-paper copy in a request, and $10 each for additional copies of papers in the same conference and in the same request.
  • Contact the CNS office to order reprints.