On the Relationship Between Plastic Shakedown and the Repeated Loading of Creeping Structures

[+] Author and Article Information
A. Ponter

Department of Engineering, University of Leicester, Leicester, England

J. Appl. Mech 38(2), 437-440 (Jun 01, 1971) (4 pages) doi:10.1115/1.3408794 History: Received February 05, 1970; Online July 12, 2010


A theorem is presented which provides an upper bound on the total inelastic energy dissipated in a structure composed of a creeping plastic material subject to variable load. The result provides a generalization of a theorem of Leckie and Ponter [4, 5] for constant load, and provides an indication of the level of loading at which plastic deformation becomes important.

Copyright © 1971 by ASME
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