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A shell-dynamics model for marine pipelines of large suspended length
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  • Journal title : Ocean Systems Engineering
  • Volume 5, Issue 4,  2015, pp.301-318
  • Publisher : Techno-Press
  • DOI : 10.12989/ose.2015.5.4.301
 Title & Authors
A shell-dynamics model for marine pipelines of large suspended length
Katifeoglou, Stefanos A.; Chatjigeorgiou, Ioannis K.;
 Abstract
The present investigations introduce the shell-finite element discretization for the dynamics of slender marine pipelines. A long catenary pipeline, corresponding to a particular Steel Catenary Riser (SCR), is investigated under long-standing cyclic loading. The long structure is divided into smaller tubular parts which are discretized with 8-node planar shell elements. The transient analysis of each part is carried out by the implicit time integration scheme, within a Finite Elements (FE) solver. The time varying external loads and boundary conditions on each part are the results of a prior solution of an integrated line-dynamics model. The celebrated FE approximation can produce a more detailed stress distribution along the structural surface than the simplistic "line-dynamics" approach.
 Keywords
offshore applications;SCR;sagbend;nonlinear dynamics;planar shells;
 Language
English
 Cited by
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