Leak-before-break: Global perspectives and procedures. (May 2015)

• Record Type: Journal Article
• Authors: Bourga, R.; Moore, P.; Janin, Y.-J.; Wang, B.; Sharples, J.
• Is Part Of: International journal of pressure vessels and piping. Volume 129/130(2015)
• Page Start: 43
• Page End: 49
• Publication Date: 2015-05
• Subjects: Leak-before-break -- Fitness-for-service (FFS) -- Pressure vessels -- Piping -- Failure; Pressure vessels -- Periodicals; Pipe -- Periodicals; Récipients sous pression -- Périodiques; Tuyaux -- Périodiques; Pipe; Pressure vessels; Periodicals; 681.76041
• DOI: 10.1016/j.ijpvp.2015.02.004
• Languages: English
• ISSNs: 0308-0161

Abstract

Abstract: 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.