Abstract
Motivated by the problem of intergranular stress corrosion cracking of Type 304 stainless steel in Boiling Water Nuclear Reactor piping systems, the paper examines the stability of a circumferential through-wall crack in a bend in a piping system that is subjected to simulated accident loading conditions. The instability criterion is expressed in terms of the material tearing modulus T MAT and the applied tearing modulus T APP (or the effective pipe length L EFF ). The main thrust of the paper is the modelling of the bend profile and an assessment of the effect of bend angle on the instability criterion.
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