Deformation, Displacement, and Work Bounds for Structures in a State of Creep and Subject to Variable Loading

[+] Author and Article Information
A. R. S. Ponter

Department of Engineering, University of Leicester, Leicester, England

J. Appl. Mech 39(4), 953-958 (Dec 01, 1972) (6 pages) doi:10.1115/1.3422897 History: Received March 16, 1971; Online July 12, 2010


General bounds on the deformation of a structure in a state of creep are derived for an elastic/perfectly plastic/time-hardening creep material, and subject to an arbitrary history of loading. Previously derived bounds for time constant loading are recovered and extended. The bounds are specialized to cyclic histories of loading. A simple example indicates that very accurate bounds are possible in some circumstances.

Copyright © 1972 by ASME
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