A numerical study of the alignment of surface flaws in a pipe

Bezensek, B., Miyazaki, K., Hasegawa, K. and Saito, K. (2010) A numerical study of the alignment of surface flaws in a pipe. In: Proceedings of the ASME Pressure Vessels and Piping Conference 2009. Series: American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP (1). ASME: New York, pp. 207-213. ISBN 9780791843642

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Flaw evaluations require guidance on the alignment and combination of multiple crack-like indications to provide a conservative assessment. This paper presents ongoing work on the alignment of twin non-aligned flaws (i.e. flaws on parallel offset planes normal to the principal loading direction). The experimental data on bending of austenitic stainless steel pipes with non-aligned flaws is briefly presented, followed by a parametric study using detailed finite element analyses with damage modelling. These are used to determine the load capacity of a pipe containing non-aligned flaws as a function of the flaw size and flaw separation. The experimental and FEA results suggest no significant effect of the alignment distance on the load capacity of the pipe with twin non-aligned surface flaws.

Item Type:Book Sections
Additional Information:2009 ASME Pressure Vessels and Piping Conference, PVP 2009 July 26, 2009 - July 30, 2009, Prague Series ISSN: 0277-027X
Glasgow Author(s) Enlighten ID:Bezensek, Dr Bostjan
Authors: Bezensek, B., Miyazaki, K., Hasegawa, K., and Saito, K.
College/School:College of Science and Engineering > School of Engineering > Systems Power and Energy

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