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http://dx.doi.org/10.12989/eas.2012.3.3_4.473

Rationally modeling collapse due to bending and external pressure in pipelines  

Nogueira, Andre C. (INTECSEA)
Publication Information
Earthquakes and Structures / v.3, no.3_4, 2012 , pp. 473-494 More about this Journal
Abstract
The capacity of pipelines to resist collapse under external pressure and bending moment is a major aspect of deepwater pipeline design. Existing design codes present interaction equations that quantify pipeline capacities under such loadings, although reasonably accurate, are based on empirical data fitting of the bending strain, and assumed simplistic interaction with external pressure collapse. The rational model for collapse of deepwater pipelines, which are relatively thick with a diameter-to-thickness ratio less than 40, provides a unique theoretical basis since it is derived from first principles such as force equilibrium and compatibility equations. This paper presents the rational model methodology and compares predicted results and recently published full scale experimental data on the subject. Predictive capabilities of the rational model are shown to be excellent. The methodology is extended for the problem of pipeline collapse under point load, longitudinal bending and external pressure. Due to its rational derivation and excellent prediction capabilities, it is recommended that design codes adopt the rational model methodology.
Keywords
pipeline; collapse; bending; external pressure; deepwater; interaction; design;
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Times Cited By KSCI : 1  (Citation Analysis)
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1 API RP1111 (2009), Design, construction, operation, and maintenance of offshore hydrocarbon pipelines (Limit state design), American Petroleum Institute, Washington, D.C.
2 Baker, J. and Heyman, J. (1969), Plastic design of frames, Cambridge University Press, Cambridge, Great Britain.
3 Choi, H.S. and Ayers, T.R. (2005). "Pipeline collapse methodology for ultra deepwater," ASME Offshore Mech. Arct. Eng., Conf. (OMAE), Halkidiki, Greece.
4 Colberg, L., Mork, J.K. and Bjornsen, T. (1997), "DNV'96: Application of a limit state based design", Offshore Mech. Arct. Eng., 5, 109-117.
5 Corona, E. and Kyriakides, S. (1988), "On the collapse of inelastic tubes under combined bending and pressure", Int. J. Solid. Struct., 24(5), 505-535.   DOI   ScienceOn
6 DeGeer, D., Marewski, U., Hillenbrand, H.G., Weber, B. and Crawford, M. (2004), "Collapse testing of thermally treated line pipe for ultra-deepwater applications", Proceedings of 23rd, Offshore Mech. Arct. Eng. (OMAE), Vancouver, Britsh Columbia, Canada.
7 DeGeer, D., Timms, C. and Lobanov, V. (2005), "Blue stream collapse test program", Proceedings of 24rd, Offshore Mech. Arct. Eng. (OMAE), Halkidiki, Greece.
8 DNV-OS-F101 (2010), Submarine pipeline systems, Det Norske Veritas, Norway.
9 Fowler, J.R. (1990), "Large scale collapse testing", Proceedings of Collapse of Offshore Pipelines, Pipeline research Committee - American Gas Association, Houston, Texas.
10 Fowler, J.R. and Langner, C.G. (1991), "Performance limits for deepwater pipelines", Offshore Tech. Conf., Paper 6757.
11 Gellin, S. (1980), "Plastic buckling of long cylindrical shells under pure bending", Int. J. Solid. Struct., 16(5), 397-407.   DOI   ScienceOn
12 Karamanos, S.A. and Tassoulas, J.L (1991), "Stability of deep-water pipelines under combined loading", Offshore Tech. Res. Center, Report No. 6/91-B-18-100, College Station, Texas.
13 Karamanos, S.A. and Tassoulas, J.L (1993), "Stability of tubes under external pressure and structural loading," Offshore Tech. Res. Center, Report No. 11/93-B51100, College Station, TX.
14 Murphey, C. and Langner, C. (1985), "Ultimate pipe strength under bending, collapse and fatigue", ASME Offshore Mech. Arct. Eng., Conf. (OMAE).
15 Nogueira, A.C. and Lanan, G.A. (2000), "Rational modeling of ultimate pipe strength under bending and external pressure", Int. Pipeline Conf., Calgary, Canada.
16 Palmer, A.C. and Martin, J.H. (1975), "Buckle propagation in submarine pipelines", Nature, 254, 46-48.   DOI
17 Stark, P.R. and McKeehan, D.S. (1995), "Hydrostatic collapse research in support of the Oman India gas pipeline", Offshore Tech. Conf., Paper 7705.
18 Paolucci, R., Griffini, S. and Mariani, S. (2010), "Simplified modeling od continuums buried pipelines subject to earthquake fault rupture", Earthq. Struct., 1(3), 253-267.   DOI
19 Roark, J.R. and Young, W.C. (1982), Formulas for stress and strain, 5th Ed., McGraw-Hill, NY, New York.
20 Sintef (1996), "Superb project: Buckling and collapse limit state", Sintef, Trondheim, Norway.
21 Timoshenko, S.P. and Gere, J.M. (1961), Theory of elastic stability, McGraw-Hill, NY.
22 Wolodko, J. and DeGeer, D. (2006), "Critical local buckling conditions for deepwater pipelines", ASME Offshore Mech. Arct. Eng., Conf. (OMAE), Hamburg, Germany.
23 Zimmerman, T.J.E., Stephens, M.J., DeGeer, D.D. and Chen, Q. (1995), "Compressive strain limits for buried pipelines", ASME Offshore Mech. Arct. Eng. Conf., 5, 365-378.