Effect of Monotonic and Cyclic Bending Deformations on NPS12 Wrinkled Steel Pipeline
Publication: Journal of Structural Engineering
Volume 134, Issue 12
Abstract
Full-scale laboratory tests on long, diameter steel pipes were carried out to investigate their postwrinkling behavior when subjected to monotonic and cyclic bending loads. Under monotonically increasing bending loads and deformations, the test specimens exhibited the ability to undergo significant plastic deformation and did not fail in fracture (leak or rupture in the pipe wall). However, when subjected to cyclic elastic-plastic strain reversals due to cyclic bending deformations, fracture developed at the wrinkle. This study indicated that the current pipeline design method using wrinkle limit strain is conservative. The paper presents test procedures, postwrinkling behavior, and fracture limit strain values obtained from four full-scale tests.
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Acknowledgments
This research project was conducted with the financial assistance from the Natural Sciences and Engineering Research Council of CanadaNSERC and Petro-Canada.
References
American Petroleum Institute (API). (2004). “Specification, for line pipe.” API 5L, American Petroleum Institute, Washington, D.C.
Bai, Y., Knauf, G., and Hillenbrand, H.-G. (2000). “Materials and design of high strength pipelines.” Proc., 19th Int. Conf. on Offshore Mechanics and Arctic Engineering, ASME, 1–9.
British Standard Institution (BSI). (2004). “Code of practice for pipelines. Part 1: Steel pipelines on land.” British Standard Institution, London.
Canadian Standard (CSA). (2003). “Oil and gas pipeline systems.” Z662-03, Canadian Standard Association, Etobicoke, Canada.
Das, S., Cheng, J. J. R., Murray, D. W., Wilkie, S. A., and Zhou, Z. J. (2000). “Laboratory study of local buckling, wrinkle development, and strains for NPS12 line pipe.” Proc., Int. Pipeline Conf. OMAE, Paper No. IPC00-0006, 909–915.
Dorey, A. B., Murray, D. W., and Cheng, J. J. R. (2006). “Critical buckling strain equations for energy pipelines—A parametric study.” J. Offshore Mech. Arct. Eng., 128(3), 248–255.
Dorey, A. B., Murray, D. W., Cheng, J. J. R., Grondin, G. Y., and Zhou, Z. J. (1999). “Testing and experimental results for NPS30 pipe under combined loads.” Proc., 18th Int. Conf. on Offshore Mechanics and Arctic Engineering, ASME, Paper No. OMAE99/PIPE-5022, 73–81.
Gresnigt, A. M. (1986). “Plastic design of buried steel pipelines in settlement areas.” Heron, 31(4), 40–51.
Jayadevan, K. R., Ostby, E., and Thaulow, C. (2004). “Strain based fracture mechanics analysis of pipelines.” Proc., Int. Conf. on Advances in Structural Integrity, Paper No. ICAS/04-0198.
Murray, D. W. (1997). “Local buckling, strain localization, wrinkling, and post-buckling response of line pipe.” Eng. Struct., 19(5), 360–371.
Norway Standard (DNV). (2005). “Offshore standard: Submarine pipeline systems.” OS-F101, Det Norske Veritas, Veritasveien, Hovik, Norway.
Oswell, J. M., Skibinsky, D., and Cavanagh, P. (2005). “Discussion of frost heave and pipeline upheaval buckling.” Can. Geotech. J., 42, 323–324.
Vitali, L., Bartolini, L., Askheim, D., Reek, R., and Levold, E. (2005). “Hotpipe Jl project experimental test and FE analyses.” Proc., 24th Int. Conf. on Offshore Mechanics and Arctic Engineering, ASME, 715–729.
Wilkie, S. A., Doblanko, R. M., and Fladager, S. J. (2000). “Case history of local wrinkling of a pipeline.” Proc., Int. Pipeline Conf., OMAE, Paper No. IPC00-0102, 917–922.
Yoosef-Ghodsi, N., Kulak, G. L., and Murray, D. W. (1995). “Some test results for wrinkling of girth-welded line pipe.” Proc., 14th Int. Conf. on Offshore Mechanics and Arctic Engineering, ASME, 379–388.
Yukon Government. (2006). “Frequently asked questions.” Oil and gas information, ⟨http://www.emr.gov.yk.ca/oilandgas/faq.html#pipe1⟩ (Sept. 3, 2006).
Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 134 • Issue 12 • December 2008
Pages: 1810 - 1817
Copyright
© 2008 ASCE.
History
Received: Nov 28, 2006
Accepted: May 2, 2008
Published online: Dec 1, 2008
Published in print: Dec 2008
Notes
Note. Associate Editor: Scott A. Civjan
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