FAILURE PROBABILITY OF NUCLEAR PIPING DUE TO IGSCC

被引:5
作者
NILSSON, F
BRICKSTAD, B
SKANBERG, L
机构
[1] Royal Institute of Technology
关键词
D O I
10.1016/0308-0161(90)90102-N
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
A simple model for the estimation of the pipe break probability due to IGSCC is developed and discussed. It is partly based on analytical procedures, partly on service experiences from the Swedish BWR program. Some rough estimates of the resulting break probabilities indicate that further studies are urgently needed. A sensitivity study is performed and it is found that the uncertainties about the initial crack configuration are the most important contributors to the total uncertainty. The results of inservice inspection are studied and it is found that the inspection intervals need to be shortened if a significant reduction in the failure probabilities is to be obtained. © 1990.
引用
收藏
页码:205 / 217
页数:13
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