Abstract
An experimental study of the inelastic behavior of annealed aluminum alloy 6061-T6 tubular specimens subjected to combined axial and torsional stress cycles is presented. Particular attention is paid to the question of how plastic strain is developed and how the yield surface moves along the 90-deg out-of-phase stress cycle. Experimental results agree qualitatively with the predictions of the two-surface plasticity theory.
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References
Lamba, H.S. andSidebottom, O.M., “Cyclic Plasticity for Nonproportional Paths: Part 1 & Part 2,”J. Eng. Mat. and Tech.,100,96–111 (1978).
Krempl, E. andLu, H., “The Hardening and Rate-Dependent Behavior of Fully Annealed AISI Type 304 Stainless Steel Under Biaxial In-Phase and Out-of-Phase Strain Cycling at Room Temperature,”Ibid.,106,376–382 (1983).
Meguid, S.A. andMalvern, L.E., “An Experimental Investigation into Plastic Flow and Strain Hardening of Mild Steel Under Proportional and Abruptly Changing Deformation Paths at a Controlled Rate,”Ibid.,105,147–154 (1983).
Ohashi, Y. andTokuda, M., “Precise Measurement of Plastic Behavior of Mild Steel Tubular Specimens Subjected to Combined Torsion and Axial Force,”J. Mech. Phys. Solids,21,241–261 (1973).
Tokuda, M., Ohashi, Y. andTsutomu, I., “On the Hypothesis of Local Determinability and a Concise Stress-strain Relation for Curved Strain Path,”Bul. of JSME,26,1475–1480 (1983).
McDowell, D.L., “A Two Surface Model for Transient Nonproportional Cyclic Plasticity: Part 1, Development of Appropriate Equations, and Part 2, Comparison of Theory with Experiments,”J. Appl. Mech.,52,298–308 (1985).
Ohashi, Y., Kawai, M. andKaito, T., “Inelastic Behavior of Type 316 Stainless Steel Under Multiaxial Nonproportional Cyclic Stressings at Elevated Temperature,”J. Eng. Mat. and Tech.,107,101–109 (1985).
Krieg, R.D., “Numerical Integration of Some New Unified Plasticity-Creep Formulation,” 4th Int. Conf. Struct. Mech. in Reactor Tech., M614 * (1977).
Phillips, A., “The Foundation of Plasticity,” Plasticity in Structure Engineering: Fundamentals and Applications, ed. Massonnet, Olszak and Phillips, Springer-Verlag (1980).
Lu, W.Y., “Modelling Plastic Deformations During Multiaxial Loading,” 4th Int. Conf. Appl. Numerical Modelling, 235–241 (1984).
Phillips, A. andLee, C.W., “Yield Surfaces and Loading Surfaces. Experiments and Recommendations,”Int. J. Solids and Struct.,15,715–729 (1979).
Phillips, A. andLu, W.Y., “An Experimental Investigation of Yield Surfaces and Loading Surfaces of Pure Aluminum with Stress-controlled and Strain-controlled Path of Loading,”J. Eng. Mat. and Tech.,106,349–354 (1984).
Krieg, R.D., “A Practical Two-Surface Plasticity Theory,”J. Appl. Mech.,42,161–168 (1975).
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Lu, WY. Plastic flow under multiaxial cyclic loading. Experimental Mechanics 26, 224–229 (1986). https://doi.org/10.1007/BF02320046
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DOI: https://doi.org/10.1007/BF02320046