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http://dx.doi.org/10.7842/kigas.2011.15.6.014

Effect of Thickness Eccentricity on Plastic Collapse of Subsea Pipeline under External Pressure  

Baek, Jong-Hyun (R&D Division, Korea Gas Corporation)
Kim, Young-Pyo (R&D Division, Korea Gas Corporation)
Kim, Woo-Sik (R&D Division, Korea Gas Corporation)
Publication Information
Journal of the Korean Institute of Gas / v.15, no.6, 2011 , pp. 14-19 More about this Journal
Abstract
The objective of this study was to investigate the effect of the thickness eccentricity on the collapse pressure of a subsea pipeline subjected to external pressure. The collapse behavior of the subsea pipeline containing initial imperfection was evaluated using elastic-plastic finite element (FE) analyses. API 5L X65 and API 5L X80 Pipelines with the thickness eccentricity values between 4~16% were adopted to investigate the plastic collapse under hydrostatic pressure. A parametric study was shown that the plastic collapse pressure decreased when either the thickness eccentricity or the ratio of diameter to thickness increased.
Keywords
API 5L X65; API 5L X80; plastic collapse pressure; subsea pipeline; thickness eccentricity;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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1 Kyriakides, S., Corona, E., "Mechanics of Offshore Pipelines", 1st ed., Elservier, Oxford, (2007).
2 Vladimir, I. R., Igor V M, "Interactive Computer Models Aid Deepwater Pipe Line Design", Pipe Line & Gas Industry, November, 55-58, (2000).
3 Colin M, "Ultra-deepwater development requires technological advances", Pipe Line & Gas Industry, November, 74-78, (2000)
4 www.nord-stream.com/en/project
5 백종현, 김우식, "해저배관의 소성붕괴에 대한 기하학적 현상변화의 효과", KIGAS, 14(4), 45-50, (2010).
6 Riks, E., "Progress in collapse Analysis", Journal of Pressure Vessel Technology, 109, 33-41, (1987).   DOI
7 Bai Y., Igland R., Moan T., "Tube collapse under combined external pressure, tension and bending", Marine Structures, 10, 389-410, (1997).   DOI   ScienceOn
8 Park T.D., Kyriakides S., "On the collapse of dented cylinders under external pressure", International Journal of Mechanical Sciences, 38, 557-578, (1996).   DOI   ScienceOn
9 Huang, X., Mihsein, M., Kibble, K., Hall, R., "Collapse strength analysis of casing design using finite element method", Int. J. Pressure Vessels and Piping, 77, 359-367, (2000).   DOI   ScienceOn
10 Abeele, F., Bar, J., Jakani, S., "Buckling and Unstable Collapse af Seamless Pipes and Tubes", Proceedings of the 8th International Pipeline Conference, IPC2010-31189, (2010).
11 Herynk, M.D., Kyriakides, S., Onoufriou, A., Yun, H.D., "Effects of the UOE/UOC manufacturing process on pipe collapse pressure". Int. J. Mechanical Sciences, 49, 533-553, (2007).   DOI   ScienceOn
12 DNV OS F101, "Submarine Pipeline System", (2007)
13 API 5L, "Specification for Line Pipe", 44th edition, (2007).
14 ABAQUS version 6.10, ABAQUS Inc., Rhode Island, USA (2010)