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RESEARCH PAPERS

A Method for Estimating Creep Deformation of Structures Subjected to Cyclic Loading

[+] Author and Article Information
J. J. Williams, F. A. Leckie

Department of Engineering, University of Leicester, Leicester, LE1 7 RH, England

J. Appl. Mech 40(4), 928-934 (Dec 01, 1973) (7 pages) doi:10.1115/1.3423189 History: Received May 01, 1972; Revised June 01, 1972; Online July 12, 2010

Abstract

A method is proposed for estimating structural creep deformation due to histories of cyclic proportional loading. The method applies to structures composed of materials whose creep strain due to constant uniaxial stress is given by an equation of the form

ε(t)/ε0 = {σ/σ0}n{t/t0}m
Knowledge of the form of the creep law for time-varying stress is not required, as use is made of an effective stress obtained from a single cyclic creep test.

Copyright © 1973 by ASME
Topics: Creep , Stress , Equations
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