Upper Bounds for Accumulated Strains Due to Creep Ratcheting

[+] Author and Article Information
W. J. O’Donnell

O’Donnell & Assocs., Inc., Pittsburgh, Pa.

J. Porowski

Prosynchem, Gliuice, Poland

J. Pressure Vessel Technol 96(3), 150-154 (Aug 01, 1974) (5 pages) doi:10.1115/1.3454160 History: Received March 08, 1974; Online October 25, 2010


A rigorous method of bounding both the total accumulated strain and the strain ranges due to cyclic operation in the creep regime is presented. These limits can be obtained from the results of purely elastic stress analyses. The basic problem of a cylindrical vessel under internal pressure subjected to cyclic thermal stresses is solved in detail. The results are presented in graphical form suitable for design purposes.

Copyright © 1974 by ASME
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