Inelastic Anisotropy of Inconel 718: Experiments and Mathematical Representation

[+] Author and Article Information
Saiganesh K. Iyer, Cliff J. Lissenden

Department of Engineering Science and Mechanics, Penn State University, University Park, PA 16802

J. Eng. Mater. Technol 122(3), 321-326 (Mar 15, 2000) (6 pages) doi:10.1115/1.482804 History: Received November 02, 1999; Revised March 15, 2000
Copyright © 2000 by ASME
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Grahic Jump Location
Tensile and compressive stress-strain responses of Inconel 718
Grahic Jump Location
Initial 30 μm/m yield surfaces for Inconel 718 at (a) 25°C and (b) 650°C. Symbols denote different specimens.
Grahic Jump Location
Threshold surface for Inconel 718 at 650°C (m=1/2, χ=1.96, σt=303 MPa,c=10−5MPa−1); (a) principal stress space, (b) loci in deviatoric planes for I1=−7800, −6300, −4800, −3300, −1800, −300 MPa
Grahic Jump Location
Effective stress paths with I1 changing—J2 and J3 constant
Grahic Jump Location
Effective stress paths with J2 changing—I1 and J3 constant
Grahic Jump Location
Effective stress paths with J3 changing—I1 and J2 constant
Grahic Jump Location
Stress path with I1 constant, J2 rate constant and J3 changing
Grahic Jump Location
Stress path with J3 constant, J2 rate constant and I1 changing
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Effective stress invariants for two proportional loading paths




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