2 February 1995 Constitutive and transformation behavior of two-way shape memory (TWSM) nitinol
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Proceedings Volume 2427, Active Materials and Smart Structures; (1995) https://doi.org/10.1117/12.200919
Event: Symposium on Active Materials and Smart Structures: Society of Engineering Science 31st Annual Meeting, 1994, College Station, TX, United States
Abstract
Experimental data for 55/45 Ni-Ti alloy (Nitinol) is presented in this work for correlation to phenomenological and thermodynamic/micromechanical constitutive and transformation models for shape memory alloys. Hysteresis data is used to obtain the transformation temperatures Ms-martensitic start, Mf-martensitic finish, As-austenitic start, and Af-austenitic finish. Nitinol wires are mechanically tested in tension at five different temperatures: below Mf, at (Ms + Mf)/2, at (M2 + As)/2, at (As + Af)/2, and above Af. For the phenomenological models, several characterization parameters are required. These are obtained experimentally and the models are correlated with the data.
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D. S. Ford, D. S. Ford, D. A. Hebda, D. A. Hebda, Scott R. White, Scott R. White, } "Constitutive and transformation behavior of two-way shape memory (TWSM) nitinol", Proc. SPIE 2427, Active Materials and Smart Structures, (2 February 1995); doi: 10.1117/12.200919; https://doi.org/10.1117/12.200919
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