Leak-before-break criterion applied to VVER 440/230 unit

Zdarek, J.; Pecinka, L.; Kadecka, P.

doi:10.1016/0167-8442(95)00011-3

Cited by 3 publications

(1 citation statement)

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“…Two reports published by the International Atomic Energy Agency (IAEA) in 1993 and 1994 present the application of LBB in different countries [5], [21]. Other publications also provide examples of LBB applications or developments in other countries, for example France [22], [23], Belgium [24], USA [17], Canada [25], [26], Korea [27], India [28] or Czech Republic [29] where the following procedures were used with slight modifications.…”

Section: Nuclear Industrymentioning

confidence: 99%

Leak-before-break: Global perspectives and procedures

Bourga

Moore

Janin

et al. 2015

International Journal of Pressure Vessels and Piping

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Structural integrity of components containing fluids is critical for economic, environmental and safety issues. Any risk of catastrophic failure, in the form of either brittle or ductile manner, is not acceptable across the industries. Consequently, many efforts have been invested in the structural integrity aspect to improve the assessment methodologies. One of the ways to aid the decision whether or not to live with the defect is through the demonstration of Leak-Before-Break (LBB). LBB which is a well-established practice in the nuclear industry, albeit as a defence-in-depth argument or to justify the elimination of pipe whip restraints, also finds its applicability in other industries. A review of the available procedures, their associated limitations and the research carried out in the last thirty years is presented in this paper. Application of this concept within non-nuclear industries is also discussed. Leak- AbstractStructural integrity of components containing fluids is critical for economic, environmental and safety issues. Any risk of catastrophic failure, in the form of either brittle or ductile manner, is not acceptable across the industries. Consequently, many efforts have been invested in the structural integrity aspect to improve the assessment methodologies. One of the ways to aid the decision whether or not to live with the defect is through the demonstration of Leak-Before-Break (LBB). LBB which is a well-established practice in the nuclear industry, albeit as a defence-in-depth argument or to justify the elimination of pipe whip restraints, also finds its applicability in other industries. A review of the available procedures, their associated limitations and the research carried out in the last thirty years is presented in this paper. Application of this concept within non-nuclear industries is also discussed.

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