Engineering Mechanics

International Conference

Proceedings Vol. 11 (2005)


ENGINEERING MECHANICS 2005

NATIONAL CONFERENCE WITH INTERNATIONAL PARTICIPATION
May 9 – 12, 2005, Svratka, Czech Republic
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Editors: Vladimír Fuis, Petr Krejčí and Tomáš Návrat

Copyright © 2005 Institute of Mechanics of Solids, Faculty of Mechanical Engineering, Bruno University of Technology, Brno

ISBN 80-85918-93-5 (printed)
ISSN 1805-8248 (printed)
ISSN 1805-8256 (electronic)

list of papers scientific commitee

On calibration of a cyclic plasticity model
Halama R.
pages 107 - +9p., full text

This paper deals with calibration of modified AbdelKarim-Ohno cyclic plasticity model [Int. J. Plasticity I6 (2000) 225]. The modification of the model was investigated for better multiaxial ratcheting simulations. Stable hysteresis loop or cyclic strain curve of a material can be used for main parameters determination. Additional parameters influence only ratcheting strain rate. These parameters could be found from at least one proportional and one nonproportional cyclic plasticity tests. Identification of the model parameters is presented using material data of BS] 1 rail steel from Bower [ J.Mech.Phys.Solids 37 (1989)].


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