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Title:Cyclic strain accumulation under complex multiaxial loading
Author(s):Moyar, G.J.; Sinclair, G.M.
Subject(s):Cyclic Strain
Multiaxial Loading
Abstract:When a tubular specimen of copper is subjected to a small steady tension and alternating torsion at room temperature large axial strain increments accumulate on a cyclic basis. At relatively low values of axial stress a steady state cyclic strain accumulation is observed to develop. The strains and cyclic strain rates which are observed are many orders of magnitude greater than corresponding values obtained under conditions of standard static creep tests performed at the same peak effective stress. They are also many times larger than those obtained due to simple repetition of the effective stress in more conventional dynamic creep test. The experiments reported herein were designed to produce an extreme case of cyclic creep wherein time and temperature dependence are minimized. The analysis of results includes a comparison with plasticity theory predictions as well as a parametric description of minimum cyclic creep rate.
Issue Date:1962-10
Publisher:Department of Theoretical and Applied Mechanics. College of Engineering. University of Illinois at Urbana-Champaign
Series/Report:TAM R 231
Genre:Technical Report
Sponsor:U.S. Air Force , Contract AF 33 (616)-8177, Project No. 1(8-7351), Task No. 73521
Rights Information:Copyright 1962 Board of Trustees of the University of Illinois
Date Available in IDEALS:2021-11-04

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  • Technical Reports - Theoretical and Applied Mechanics (TAM)
    TAM technical reports include manuscripts intended for publication, theses judged to have general interest, notes prepared for short courses, symposia compiled from outstanding undergraduate projects, and reports prepared for research-sponsoring agencies.

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