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RESEARCH PAPERS

Residual Stress Estimation and Shakedown Evaluation Using GLOSS Analysis

[+] Author and Article Information
R. Seshadri

Memorial University of Newfoundland, St. John’s, Newfoundland, Canada A1B 3X5

J. Pressure Vessel Technol 116(3), 290-294 (Aug 01, 1994) (5 pages) doi:10.1115/1.2929590 History: Received February 11, 1994; Online June 17, 2008

Abstract

A simple method for estimating residual stresses using the GLOSS analysis is presented, and a shakedown assessment method is proposed. Practical pressure components exhibit some local elastic follow-up, and thereby induce smaller residual stresses than implied by uniaxial models. In this context, the effectiveness of “autofrettaging” is examined by studying a thick-walled cylinder subjected to an internal pressure. Modifications to the P + Q stress-intensity limit are suggested, and compared with Roche’s criterion. The method presented here is useful for configurations experiencing small to medium amounts of follow-up, which covers many practical situations.

Copyright © 1994 by The American Society of Mechanical Engineers
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