Two-Dimensional Strain Cycling in Plasticity

[+] Author and Article Information
P. M. Naghdi, D. J. Nikkel

Department of Mechanical Engineering, University of California, Berkeley, CA 94720

J. Appl. Mech 53(4), 821-830 (Dec 01, 1986) (10 pages) doi:10.1115/1.3171865 History: Received November 04, 1985; Online July 21, 2009


Detailed calculations are presented for strain cycling in a homogeneous deformation that can be sustained by a biaxial state of stress in thin-walled specimens of OFHC copper. These calculations are made with a set of relatively simple constitutive equations within the framework of the strain-space formulation of plasticity. The predicted theoretical calculations, carried out in the context of small deformation, are in good agreement with corresponding available experimental results for saturation hardening and erasure of memory in two-dimensional strain cycling. Also, with the use of the calculated results, a scalar quantity that characterizes strain-hardening is plotted as a function of plastic strains. Such plots are likely to be useful for computational purposes.

Copyright © 1986 by ASME
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