Matched asymptotic expansions for bent and twisted rods: applications for cable and pipeline laying
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The geometrically exact theory of linear elastic rods is used to formulate the general three-dimensional problem of a twisted, clamped rod hanging under gravity and subject to buoyancy forces from a fluid. The resulting boundary-value problem is solved by the method of matched asymptotic expansions. The truncated analytical solution is compared with results obtained from a numerical scheme and shows good agreement. The method is used to consider the near-catenary application of a clamped pipeline.
Key words: rod theory, matched asymptotic expansions, boundary layers, catenary, heavy cables, pipelines, buoyancy forces
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- Matched asymptotic expansions for bent and twisted rods: applications for cable and pipeline laying
Journal of Engineering Mathematics
Volume 38, Issue 1 , pp 13-31
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