Nonlinear-elastic strain of underwater pipeline in laying process
DOI:
https://doi.org/10.7242/1999-6691/2012.5.1.9Keywords:
nonlinear-elastic rod, contact problem, hydrostatic load, numerical modeling, finite difference methodAbstract
The contact problem of laying of an underwater pipeline as a nonlinear-elastic rod is formulated and numerically solved. Influence of various factors, i.e., tension, shear, physical nonlinearity of the material, initial angle and depth, is considered. A new formula for hydrostatic loading is derived and used in calculations. Stresses in the pipe, loading on a vessel, form of the sagging part, and contact pressure are determined.
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