A Unified Constitutive Model for the Inelastic Uniaxial Response of Rene’ 80 at Temperatures Between 538C and 982C

[+] Author and Article Information
V. G. Ramaswamy

General Electric Aircraft Engines, Evendale, Ohio 45215

D. C. Stouffer

Department of Aerospace Engineering and Engineering Mechanics, University of Cincinnati, Cincinnati, Ohio 45221

J. H. Laflen

General Electric Aircraft Engines, Evandale, Ohio 45215

J. Eng. Mater. Technol 112(3), 280-286 (Jul 01, 1990) (7 pages) doi:10.1115/1.2903324 History: Received November 29, 1988; Revised March 20, 1989; Online April 29, 2008


The objective of this research is to develop a constitutive equation for the uniaxial monotonic and cyclic response of Rene’80 between the temperatures of 538C and 982C. The constitutive equation is accompanied by experimental data for the evaluation of the material constants. Extensive verification is achieved through the successful correlation of tensile and creep response and prediction of mechanical cycling experiments including mean stress shifts. These results also serve as a starting point for reformulating the model for the prediction of the high temperature multiaxial response of Rene’80 that includes torsion, proportional, and nonproportional uniaxial and torsional loading histories.

Copyright © 1990 by The American Society of Mechanical Engineers
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