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TECHNICAL PAPERS

Constitutive Modeling of the Visco-Plastic Response of Hastelloy-X and Aluminum Alloy 8009

[+] Author and Article Information
M. A. Rowley, E. A. Thornton

Department of Mechanical and Aerospace Engineering, University of Virginia, Charlottesville, VA 22903-2442

J. Eng. Mater. Technol 118(1), 19-27 (Jan 01, 1996) (9 pages) doi:10.1115/1.2805928 History: Received February 09, 1994; Revised March 19, 1995; Online November 27, 2007

Abstract

The viscoplastic behavior of advanced, high temperature, metallic alloys is characterized using the Bodner Partom unified constitutive model. Material parameters for both Hastelloy-X and Aluminum alloy 8009 are obtained for this model. The Bodner Partom constitutive model is summarized, and a detailed approach for determining the model parameters from experimental data is reviewed. Experimental methods for obtaining the mechanical test data are described. Bodner-Partom model parameters are determined from data obtained in uniaxial, isothermal, monotonie tension or compression tests and isothermal creep tests. Model predictions from the parameters determined are generated and compared to experimental data.

Copyright © 1996 by The American Society of Mechanical Engineers
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