Creep Rupture of Anisotropic Pipes

[+] Author and Article Information
S. A. Shesterikov, A. M. Lokochtchenko, E. A. Mjakotin

Institute of Mechanics, Moscow University, Michurinsky Prospect 1, Moscow 119899, Russia

J. Pressure Vessel Technol 120(3), 223-225 (Aug 01, 1998) (3 pages) doi:10.1115/1.2842049 History: Received March 31, 1994; Revised October 07, 1997; Online February 11, 2008


The problem of creep rupture of pipes from an anisotropic material is studied. The authors suggest a method describing the results of creep rupture tests on thin-walled pipes under complex stress state by taking the strength anisotropy of material into account. A coefficient of strength anisotropy has been determined from the results of creep rupture testing, and a method is given for calculation under various modes of complex stress state. This procedure is based on evaluating the values of the statistical spread from the experimental data. The anisotropy coefficient corresponding to the minimum spread is adopted. The suggested method of calculating the strength anisotropy coefficient is confirmed experimentally.

Copyright © 1998 by The American Society of Mechanical Engineers
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