When multiple surface flaws are detected in pressure components, their potential interaction is to be assessed to determine whether they must be combined or evaluated independently of each other. This assessment is performed through the flaw characterization rules of Fitness-For-Service (FFS) Codes. However, the specific combination criteria of surface flaws are different among the FFS Codes. Most of the time, they consist of simple criteria based on distance between flaws and flaw depth. This paper aims at proposing alternative characterization rules reflecting the actual level of interaction between surface planar flaws. This interaction depends on several parameters such as the relative position of flaws, the flaw sizes and their aspect ratio. Thanks to numerous three-dimensional XFEM simulations, best suited combination criteria for surface planar flaws are derived by considering the combined influence of these parameters.
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ASME 2018 Pressure Vessels and Piping Conference
July 15–20, 2018
Prague, Czech Republic
Conference Sponsors:
- Pressure Vessels and Piping Division
ISBN:
978-0-7918-5158-6
PROCEEDINGS PAPER
Alternative Characterization Rules for Multiple Surface Planar Flaws Available to Purchase
Pierre Dulieu,
Pierre Dulieu
Tractebel (ENGIE), Brussels, Belgium
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Valéry Lacroix,
Valéry Lacroix
Tractebel (ENGIE), Brussels, Belgium
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Kunio Hasegawa,
Kunio Hasegawa
Japan Atomic Energy Agency, Tōkai, Japan
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Yinsheng Li,
Yinsheng Li
Japan Atomic Energy Agency, Tōkai, Japan
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Bohumir Strnadel
Bohumir Strnadel
VSB-Technical University of Ostrava, Ostrava-Poruba, Czech Republic
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Pierre Dulieu
Tractebel (ENGIE), Brussels, Belgium
Valéry Lacroix
Tractebel (ENGIE), Brussels, Belgium
Kunio Hasegawa
Japan Atomic Energy Agency, Tōkai, Japan
Yinsheng Li
Japan Atomic Energy Agency, Tōkai, Japan
Bohumir Strnadel
VSB-Technical University of Ostrava, Ostrava-Poruba, Czech Republic
Paper No:
PVP2018-84960, V01AT01A053; 10 pages
Published Online:
October 26, 2018
Citation
Dulieu, P, Lacroix, V, Hasegawa, K, Li, Y, & Strnadel, B. "Alternative Characterization Rules for Multiple Surface Planar Flaws." Proceedings of the ASME 2018 Pressure Vessels and Piping Conference. Volume 1A: Codes and Standards. Prague, Czech Republic. July 15–20, 2018. V01AT01A053. ASME. https://doi.org/10.1115/PVP2018-84960
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