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A method for the evaluation of a ratchet limit and the amplitude of plastic strain for bodies subjected to cyclic loading

Chen, H.F. and Ponter, A.R.S. (2001) A method for the evaluation of a ratchet limit and the amplitude of plastic strain for bodies subjected to cyclic loading. European Journal of Mechanics - A/Solids, 20 (4). pp. 555-571. ISSN 0997-7538

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Abstract

An extension of the upper bound shakedown theorem to load histories in excess of shakedown has been presented elsewhere in this issue. Here the minimisation process described therein is applied to the solutions of the ratchet limit as well as shakedown and limit load for a range of simple problems. The solutions provide an estimate of the maxima of the varying plastic strain magnitudes, which is compared with the Neuber approximate values. The position of the ratchet boundary is confirmed by comparison step-by-step analysis.

Item type: Article
ID code: 5796
Keywords: inelasticity, shakedown, ratchetting, cyclic load, plastic limit, strain hardening, structural analysis, perforated plate, numerical method, modeling, materials science, Mechanical engineering and machinery
Subjects: Technology > Mechanical engineering and machinery
Department: Faculty of Engineering > Mechanical and Aerospace Engineering
Related URLs:
    Depositing user: Strathprints Administrator
    Date Deposited: 03 Apr 2008
    Last modified: 14 Aug 2012 15:24
    URI: http://strathprints.strath.ac.uk/id/eprint/5796

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