Modeling and Identification of Inelastic Systems Using the Endochronic Model

[+] Author and Article Information
Dar-Yun Chiang

Institute of Aeronautics and Astronautics, National Cheng Kung University, Tainan, Taiwan 70101, R.O. China

J. Appl. Mech 65(2), 513-518 (Jun 01, 1998) (6 pages) doi:10.1115/1.2789084 History: Received May 22, 1997; Revised November 14, 1997; Online October 25, 2007


An effective modeling method is proposed for the endochronic model based on the concept of plastic equilibrium points, which reduces the number of parameters involved and greatly simplifies the modeling process for practical applications. A systematic, optimization-based parameter estimation procedure for the proposed class of endochronic models is also presented for identification studies. Validity of the proposed modeling technique in both modeling and identification of inelastic systems is demonstrated by biaxial tension-torsion applications using experimental results available in the literature.

Copyright © 1998 by The American Society of Mechanical Engineers
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