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RESEARCH PAPERS

Fatigue Life of Cathodically Protected Tubular Joints of Offshore Structures

[+] Author and Article Information
D. S. Ramachandra Murthy, P. Gandhi, G. Raghava

Structural Engineering Research Centre, Taramani, Chennai 600113, India

J. Offshore Mech. Arct. Eng 120(4), 232-236 (Nov 01, 1998) (5 pages) doi:10.1115/1.2829545 History: Received October 03, 1997; Revised May 28, 1998; Online December 17, 2007

Abstract

Steel jacket platforms are widely used for production and processing of oil from offshore fields. Tubular joints of these structures are susceptible to fatigue or corrosion fatigue cracking due to cyclic wave action, stress concentration, and corrosive environment. The submerged part of the structure is cathodically protected against corrosion by fixing sacrificial anodes at various places. The effect of cathodic protection on the fatigue life of tubular joints was studied by conducting fatigue tests on 13 T and Y-joints in air, under free corrosion, and with cathodic protection. The results of the studies are discussed in this paper.

Copyright © 1998 by The American Society of Mechanical Engineers
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