Abstract

Welding residual stress is one of the most important factors of stress corrosion cracking (SCC) growth in pressure boundary piping. A probabilistic fracture mechanics model of structural reliability is described that considers failure to occur as the result of subcritical and catastrophic growth of pre-existing cracks that escape detection. The model considers cracks to be two-dimensional and is capable of treating many of the input parameters as random variables and can consider arbitrary inspection schedules.
Residual stresses play a very important role in the initiation and growth of stress corrosion cracks. Hence they are important in the analysis of reliability of sensitized welds in BWR piping; our model includes extensive provisions for their consideration.

Information

Item Type:	Conference
Divisions:
ePrint ID:	71
Date Deposited:	2014-10-30
Further Information:	Google Scholar
URI:	https://www.univ-soukahras.dz/en/publication/article/71

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