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RESEARCH PAPERS: Offshore Mechanics/Ocean Engineering/Arctic Engineering

Buckling of Risers in Tension due to Internal Pressure: Nonmovable Boundaries

[+] Author and Article Information
M. M. Bernitsas, T. Kokkinis

Department of Naval Architecture and Marine Engineering, The University of Michigan, Ann Arbor, Mich. 48109

J. Energy Resour. Technol 105(3), 277-281 (Sep 01, 1983) (5 pages) doi:10.1115/1.3230915 History: Received June 05, 1982; Revised November 08, 1982; Online October 22, 2009

Abstract

Open-ended tubular columns may buckle globally as Euler columns due to the action of internal fluid pressure even while they are in tension along their entire length. Hydraulic columns, marine drilling and production risers are, therefore, prone to such static instability. This paper explains this phenomenon, defines the critical riser length for which this instability may occur and provides graphs with values of the critical length which can readily be used for design purposes. Risers with nonmovable boundaries are considered; namely, hinged-hinged, clamped-hinged, hinged-clamped and clamped-clamped risers.

Copyright © 1983 by ASME
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