The Structural Engineer > Archive > Volume 81 (2003) > Issues > Issue 20 > Optimisation of tapered stress joints for offshore catenary risers
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Optimisation of tapered stress joints for offshore catenary risers

The behaviour and requirements of tapered stress joint marine riser termination systems are not widely understood. The complex structural behaviour coupled with an array of dynamic loadcase requirements can result in over-design. This paper describes a technique for the design of an optimal tapered stress joint, explains the benefits of different materials and investigates the application of design requirements. The technique uses a proprietary software system developed at UMIST for the automated optimisation of tapered stress joints. Nicholas Cunliffe, MEng Manchester Centre for Civil and Construction Engineering, UMIST, PO Box 88, Manchester, M60 1QD Timothy J. McCarthy, PhD Manchester Centre for Civil and Construction Engineering, UMIST, PO Box 88, Manchester, M60 1QD Andrew Trim, PhD MIMechE RTI Energy Systems, Spring, Texas

Author(s): Cunliffe, Nicholas;McCarthy, Timothy J;Trim, Andrew

Keywords: catenary risers;stress;joints;offshore structures;design criteria;materials;examples