Improvement of the ASME B&PV code resolution of nonplanar flaws in pressure retaining components

Lacroix, V.*; Dulieu, P.*; Hasegawa, Kunio; Mares, V.*

In the ASME Code Section XI, a simplified approach is proposed: a nonplanar flaw is resolved into two planar flaws by projection of the flaw area into planes normal to the maximum principal stress. However, simplified resolution of nonplanar flaws is not conservative for all types of loading and flaw inclinations. Consequently, an improvement of the resolutions of nonplanar flaws must be provided in the ASME Code Section XI. This paper carries out an exhaustive assessment of the conservatism of the ASME approach and then proposes an alternative approach to deal with nonplanar flaws allowing to overcome the non-suitability of current ASME Code.

Language	:	English
Journal	:	Proceedings of ASME 2022 Pressure Vessels and Piping Conference (PVP 2022) (Internet)
Volume	:
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Pages	:	7 Pages
Publication Year/Month	:	2022/07
Meeting title	:	2022 ASME Pressure Vessels and Piping Conference (PVP 2022)
Held date	:	2022/07
Location (city)	:	Las Vegas
Location (country)	:	U.S.A.
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Registration No. : BB20220233
JAEA Abstracts No. : 50001135
Paper Submission No. : 25905

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