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RESEARCH PAPERS: Offshore Mechanics

Stress Concentrations in Circular Tubular Members Containing Local Damage

[+] Author and Article Information
C. K. W. Tam, J. G. A. Croll

Department of Civil and Municipal Engineering, University College London, London, U.K.

J. Offshore Mech. Arct. Eng 111(4), 278-284 (Nov 01, 1989) (7 pages) doi:10.1115/1.3257096 History: Received January 01, 1987; Revised February 06, 1989; Online October 30, 2009

Abstract

Offshore structural circular tubular members suffering from local dent damage can develop extreme stresses at locations around the dent area. An analytical method for the prediction of elastic stress concentrations in locally damaged circular tubular members is presented. The method is based upon replacing geometric errors with an appropriately chosen load function to be applied to the perfect member for analysis. A simpler approach based upon an axisymmetric analysis, suitable for speedy assessment of the damage effects, is also presented. Axially loaded tubulars containing an idealized dent under stress and displacement-controlled situations are included.

Copyright © 1989 by ASME
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