The effect of axial extensibility on three-dimensional behavior of tensioned pipes/risers transporting fluid
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Publication Details
Author list: Athisakul C., Monprapussorn T., Pulngern T., Chucheepsakul S.
Publisher: Hindawi
Publication year: 2008
Start page: 97
End page: 104
Number of pages: 8
eISSN: 1745-4557
Languages: English-Great Britain (EN-GB)
Abstract
This paper presents the effect of axial extensibility on three-dimensional behavior of the tensioned pipes/risers. The large strain model formulation is developed by variational approach based on the elastica theory and the work-energy principle. The finite element method is used to find the nonlinear static configuration and large static strain. The natural frequencies and mode shapes are calculated by using the assumed-modes finite element method. The pipes/risers perform tensioned beam behavior when the bending stiffness dominates, and the stability of the pipes/risers reduces as the axial extensibility increases. On the contrary, the pipes/risers perform the tensioned cable behavior when the axial stiffness dominates, and the stability of the pipes/risers increases as the axial extensibility increases. Copyright ฉ 2008 by The International Society of Offshore and Polar Engineers.
Keywords
Axial extensibility, Large strain, Tensioned pipes/risers, Three-dimensional, Transporting fluid
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