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RESEARCH PAPERS

On the Conditions to Prevent Plastic Shakedown of Structures: Part I—Theory

[+] Author and Article Information
Castrenze Polizzotto

Dipartimento di Ingegneria Stutturale & Geotecnica, DISEG, Università di Palermo, Viale delle Scienze, I-90128 Palermo, Italy

J. Appl. Mech 60(1), 15-19 (Mar 01, 1993) (5 pages) doi:10.1115/1.2900739 History: Received November 30, 1990; Revised September 20, 1991; Online March 31, 2008

Abstract

For a structure of elastic perfectly plastic material subjected to a given cyclic (mechanical and/or kinematical) load and to a steady (mechanical) load, the conditions are established in which plastic shakedown cannot occur whatever the steady load, and thus the structure is safe against the alternating plasticity collapse. Static and kinematic theorems, analogous to those of classical shakedown theory, are presented.

Copyright © 1993 by The American Society of Mechanical Engineers
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