“Biaxiality Effect” on the Energy Dissipated by Elastoplastic Base-Isolators
Publication: Journal of Engineering Mechanics
Volume 129, Issue 6
Abstract
A plane elastic-plastic solid body presenting kinematic hardening is used to simulate a pair of dampers at the base of a rigid structure and determine the energy dissipation under conditions of assigned, homogeneous cyclic loading. The well-known von Mises theory of plasticity is applied with the aim of obtaining analytical solutions to the problem. Such solutions are arrived at by first calculating the Odqvist parameter, which yields dimensionless relations that depend on the external loads and mechanical properties of the material. The results, in terms of dissipated energy, are given for the case of a sinusoidal process, represented with the help of dimensionless parameters useful for engineering applications.
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Published In
Journal of Engineering Mechanics
Volume 129 • Issue 6 • June 2003
Pages: 607 - 612
Copyright
Copyright © 2003 American Society of Civil Engineers.
History
Received: Apr 2, 2001
Accepted: Nov 6, 2002
Published online: May 15, 2003
Published in print: Jun 2003
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