Alignment criteria for through-wall flaws in plates and pipes

Bezensek, B. and Miyazaki, K. (2009) Alignment criteria for through-wall flaws in plates and pipes. In: Hasegawa, K. and Scarth, D.A. (eds.) Proceedings of the ASME Pressure Vessels and Piping Conference. Series: Pressure Vessel and Piping Division of the American Society of Mechanical Engineers, 1. ASME: New York, pp. 227-234. ISBN 978-0-7918-4824-1

Abstract

Multiple flaws in vessels and pipes are frequently assessed as a larger single flaw in accordance with the flaw alignment and combination rules. In this paper the alignment of two through-wall flaws is examined for plates in tension and pipes in bending using detailed finite element (FE) modelling. The FE model is developed using the Gurson-Tvergaard damage model and accurately describes the flaw interaction and load capacity of a random experimental sample. Results suggests that two flaws should be aligned onto the same plane for the purpose of assessment when the separation between the parallel planes containing flaws equals the flaw length for both, plates in tension and pipes in bending.

• Item Type: Book Sections
• Additional Information: Pressure Vessels and Piping Conference of the American-Society-of-Mechanical-Engineers, Chicago, IL, JUL 27-31, 2008
• Status: Published
• Glasgow Author(s) Enlighten ID: Bezensek, Dr Bostjan
• Authors: Bezensek, B., and Miyazaki, K.
• College/School: College of Science and Engineering > School of Engineering > Systems Power and Energy
• Publisher: ASME
• ISBN: 978-0-7918-4824-1