Journal
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES
Volume 38, Issue 46-47, Pages 8481-8502Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0020-7683(01)00113-5
Keywords
buckle propagation; submarine pipelines; dynamic relaxation
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A theoretical explicit formulation for numerical simulation of the buckle propagation in deepwater pipelines is proposed. It is based on thin shell theory incorporating large rotations and material elastic-plastic behavior for infinitesimal strains. The equilibrium equations are solved numerically through a computer program using the finite difference method associated to the dynamic relaxation technique. The pipe post-buckling behavior is determined by the arc-length method used in convolute regions of the load-displacement curve. The numerical results are correlated with experimental data from small scale laboratory tests. (C) 2001 Elsevier Science Ltd. All rights reserved.
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