Probabilistic leak-before-break analysis with correlated input parameters

A validated approach for probabilistic structural integrity design code implementation

“…Zentuti et al [4][5][6][7] presented a probabilistic assessment methodology and subsequently conducted probabilistic assessment for an AGR tubeplate component in the creep-fatigue crack initiation regime to demonstrate the utilities of implementing a probabilistic framework. Qian and co-authors [8,9] employed MC probabilistic methodology with Nataf transformation as well as the Fracture Analysis of Vessels Oak Ridge (FAVOR) computer code, developed by Oak Ridge National Laboratory (ORNL), to analyse the crack initiation and leak-before-break (LBB) behaviour of a reactor pressure vessel (RPV). In the same way, Chen et al [10] applied the FAVOR code to calculate the probabilities of conditional initiation/cleavage frequency of a RPV beltline region subjected to pressurized thermal shock events.…”