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RESEARCH PAPERS

Biaxial Ratcheting Under Strain or Stress-Controlled Axial Cycling With Constant Hoop Stress

[+] Author and Article Information
Z. Xia, F. Ellyin

Department of Mechanical Engineering, University of Alberta, Edmonton, AB T6G 2G8, Canada

J. Appl. Mech 61(2), 422-428 (Jun 01, 1994) (7 pages) doi:10.1115/1.2901461 History: Received September 14, 1992; Revised February 23, 1993; Online March 31, 2008

Abstract

Strain or stress-controlled tension-compression cyclic tests were conducted on pressurized thin-walled tubular specimens of 304 stainless steel. In strain-controlled mode ratcheting strains in hoop direction, and under stress-controlled mode ratcheting in both hoop and axial directions, were observed. To predict the observed ratcheting behavior, an additional evolution rule for the stress memory surface has been introduced in the constitutive model developed recently by the authors. Qualitative and quantitative comparisons with the test results indicate a fairly good agreement in predicting ratcheting deformations.

Copyright © 1994 by The American Society of Mechanical Engineers
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