RESEARCH PAPERS: Offshore Mechanics

A Comparison of Fracture Mechanics and S–N Curve Approaches in Designing Drill Pipe

[+] Author and Article Information
A. Ertas, G. Mustafa, O. Cuvalci

Mechanical Engineering Department, Texas Tech University, Lubbock, TX 79409

J. Offshore Mech. Arct. Eng 114(3), 205-211 (Aug 01, 1992) (7 pages) doi:10.1115/1.2919972 History: Received February 25, 1989; Revised April 22, 1992; Online June 12, 2008


It is well known that the upper ball joint in a marine riser, in deep drilling, can cause fatigue damage in the drill pipe passing through it. A study of fracture mechanics and S–N curve approaches has been undertaken to determine the dynamic fatigue damage in the drill pipe. Miner’s rule is utilized in both methods to determine the total damage. The results of both methods are compared.

Copyright © 1992 by The American Society of Mechanical Engineers
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