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TECHNICAL PAPERS

Loading History Effects for Deep-Water S-Lay of Pipelines

[+] Author and Article Information
Heedo D. Yun

Shell International Exploration and Production, 3737 Bellaire Blvd., Houston, TX 77025, USAe-mail: Heedo.Yun@Shell.com

Ralf R. Peek

Shell International Exploration and Production, Visseringlaan 19, Room Ma 401K, Postbus 60 2280 AB Rijswijk, The Netherlandse-mail: Ralf.Peek@Shell.com

Paul R. Paslay

Techaid Corporation, 810 Bienville #211, New Orleans, LA 70112e-mail: ppaslay1@cs.com

Frans F. Kopp

Shell International Exploration and Production, 200 North Dairy Ashford, Houston, TX 77079, USAe-mail: Frans.Kopp@Shell.com

J. Offshore Mech. Arct. Eng 126(2), 156-163 (May 18, 2004) (8 pages) doi:10.1115/1.1710871 History: Received February 24, 2003; Revised August 03, 2003; Online May 18, 2004
Copyright © 2004 by ASME
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References

Figures

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(a) Initial stress free state. (b) Pipe is draped over the stinger under tension. Proper loading effect is not included. (c) Pipe slides on roller under tension. New pipe is supplied at the top end of the stinger. Proper loading effect is included.
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(a) Numerical solution for the pipe curvature. (b) Numerical solution for the bending moment. (c) Numerical solution for the moment-curvature relation. (d) Numerical solution for the pipe extensional strain. (1) Without proper loading history; (2) with proper loading history.
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(a) Pipe curvature solution. (b) Pipe bending moment solution. (c) Pipe bending moment vs. curvature solution. (d) Pipe shear force solution. (1) Analytical solution; (2) numerical solution with proper loading history.
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(a) FBD of the pipe section AB. (b) FBD of the pipe section of length x.
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(a) FBD of the pipe section OAB. (b) FBDs of the pipe section OA, and AB.
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A sample stress profile of a pipe section. The elastic-perfectly plastic pipe material is yielding in tension.
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(a) Moment-curvature relations for different tension values. (b) Extensional strain-curvature relations for different tension values.
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(a) One roller per rollerbox model. (b) Two rollers per rollerbox model.
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(a) Analytical solution for the pipe curvature. (b) Analytical solution for the pipe bending moment. (c) Analytical solution for the bending moment-curvature relation (superimposed on the M-κ curve under tension). (1) One roller per rollerbox model; (2) two rollers per rollerbox model; (3) the average stinger curvature.
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Analytical solution for the total strain at the top and bottom of the pipe section. (1) One roller per rollerbox model; (2) two rollers per rollerbox model.

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