A Constitutive Model for Powder Materials

[+] Author and Article Information
Jishan Jin, N. D. Cristescu

Department of Aerospace Engineering, Mechanics & Engineering Sciences, University of Florida, Gainesville, FL 32611-6250

J. Eng. Mater. Technol 120(2), 97-104 (Apr 01, 1998) (8 pages) doi:10.1115/1.2807010 History: Received September 02, 1997; Revised November 26, 1997; Online November 27, 2007


A new elastic/viscoplastic constitutive model for compaction of power materials has been proposed. The model can be determined from a few conventional compression triaxial tests. In this model the irreversible volumetric strain is taken as work-hardening parameter. The model prediction matches reasonably well the experimental data.

Copyright © 1998 by The American Society of Mechanical Engineers
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