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TECHNICAL PAPERS

Plastic Coupling and Stress Relaxation During Nonproportional Axial-Shear Strain-Controlled Loading

[+] Author and Article Information
Cliff J. Lissenden

Department of Engineering Science and Mechanics, Penn State University, University Park, PA 16802 e-mail: cjlesm@psu.edu

Steven M. Arnold

NASA Glenn Research Center, Cleveland, OH 44135e-mail: s.arnold@grc.nasa.gov

Atef F. Saleeb

Department of Civil Engineering, University of Akron, Akron, OH 44325e-mail: saleeb@uakron.edu

J. Pressure Vessel Technol 123(1), 81-87 (Oct 23, 2000) (7 pages) doi:10.1115/1.1344883 History: Received January 01, 2000; Revised October 23, 2000
Copyright © 2001 by ASME
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References

Lissenden, C. J., Walker, M. A., and Lerch, B. A., 2000, “Axial-Torsional Load Effects of Haynes 188 at 650°C,” Multiaxial Fatigue and Deformation: Testing and Prediction, STP 1387, American Society for Testing and Materials, Philadelphia, PA, pp. 99–125.
Arnold,  S. M., and Saleeb,  A. F., 1994, “On the Thermodynamic Framework of Generalized Coupled Thermoelastic-Viscoplastic-Damage Modeling,” Int. J. Plast., 10, pp. 263–278.
Arnold,  S. M., Saleeb,  A. F., and Wilt,  T. E., 1995, “A Modeling Investigation of Thermal and Strain Induced Recovery and Nonlinear Hardening in Potential Based Models,” ASME J. Eng. Mater. Technol., 117, pp. 157–167.
Wilt, T. E., 1999, private communication.
Bhanu Sankar Rao,  K., Castelli,  M. G., Allen,  G. P., and Ellis,  J. R., 1997, “A Critical Assessment of the Mechanistic Aspects in Haynes 188 During Low-Cycle Fatigue in the Range 25°C to 1000°C,” Metall. Mater. Trans. A, 28A, pp. 347–361.
Saleeb, A. F., Arnold, S. M., Castelli, M. G., Wilt, T. E., and Graff, W., 2001, “A General Hereditary Multimechanism Based Deformation Model With Application to the Viscoelastoplastic Response of Titanium Alloys,” Int. J. Plast., to appear.

Figures

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Tensile stress-strain curve
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Correlation between experiments and GVIPS model predictions
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Response to nonproportional axial-shear straining—(a) initial axial stress-strain, (b) shear stress-strain, (c) axial stress-shear strain with constant axial strain
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Axial stress relaxation over a short time period
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Direction of the plastic strain increment vector in the axial-shear strain plane as a function of shear strain
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Evolution of axial and shear Cauchy and internal stresses for nonproportional loading

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