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論文

Proposal of a new subsurface-to-surface flaw transformation rule for fatigue crack growth analyses

Lacroix, V.*; Bouydo, A.*; 勝又 源七郎*; Li, Y.; 長谷川 邦夫

Proceedings of 2017 ASME Pressure Vessels and Piping Conference (PVP 2017) (CD-ROM), 7 Pages, 2017/07

This paper summarizes the steps leading to the improvement of the ASME Code Section XI subsurface-to-surface proximity rule. Based on fatigue crack growth calculations and refined investigations, the paper proposes a new limit value for the surface proximity factor. As a result, a proposal for modification of the ASME Code Section XI, Appendix C is provided. The paper is used for the technical basis of this proposal.

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