Application of Bodner Viscoplastic Theory to Pressure-Shear Plate Impact Experiment

[+] Author and Article Information
A. Gilat, J. Tsai

Department of Engineering Mechanics, The Ohio State University, Columbus, Ohio 43210

J. Eng. Mater. Technol 112(1), 52-55 (Jan 01, 1990) (4 pages) doi:10.1115/1.2903186 History: Received October 15, 1988; Revised February 05, 1989; Online April 29, 2008


An application of the unified elastic-viscoplastic constitutive theory of Bodner [5] is presented. The material parameters in the theory, which includes directional hardening, are determined from results of uniaxial stress tests at constant strain rates. The constitutive equations are then used in numerical modeling of pressure-shear plate impact experiment. The results show that the measured normal component of the wave agrees well with the calculated profile. A small discrepancy, which can be accounted for by the presence of a Bauschinger effect, exists between the theoretical and the experimental shear component of the wave profiles.

Copyright © 1990 by The American Society of Mechanical Engineers
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