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A review of nondestructive examination methods for new-building ships undergoing classification society survey

Amirafshari, Peyman and Barltrop, Nigel and Bharadwaj, Ujjwal and Wright, Martyn and Oterkus, Selda (2017) A review of nondestructive examination methods for new-building ships undergoing classification society survey. Journal of Ship Production and Design, 33 (2). pp. 1-11. ISSN 2158-2866

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Abstract

Classification societies require ship manufacturers to perform nondestructive examination (NDE) of ship weldments to ensure the welding quality of new-building ships. Ships can contain hundreds of kilometers of weld lines and 100% inspection of all welded connections is not feasible. Hence, a limited number of weldments are specified by rules of classification societies to be inspected on a sampling basis. There is a variation between the rules and guidelines used by different classification societies in terms of both philosophy and implementation which results in significant discrepancy in the prescribed checkpoints, numbers, and their locations. In this article, relevant sections of the rules of mainstream International Association of Classification Societies members are studied and potential ways of improving them are discussed. The authors have endeavored to make this study as comprehensive as much as possible. However, given the challenges of covering every single aspect and variable related to NDE in the classification societies’ rules and guidelines reviewed here, the authors can only attempt to cover the key features.