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Proceedings Paper

Constitutive and transformation behavior of two-way shape memory (TWSM) nitinol
Author(s): D. S. Ford; D. A. Hebda; Scott R. White
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Paper 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.

Paper Details

Date Published: 2 February 1995
PDF: 16 pages
Proc. SPIE 2427, Active Materials and Smart Structures, (2 February 1995); doi: 10.1117/12.200919
Show Author Affiliations
D. S. Ford, Univ. of Illinois/Urbana-Champaign (United States)
D. A. Hebda, Univ. of Illinois/Urbana-Champaign (United States)
Scott R. White, Univ. of Illinois/Urbana-Champaign (United States)

Published in SPIE Proceedings Vol. 2427:
Active Materials and Smart Structures
Gary L. Anderson; Dimitris C. Lagoudas, Editor(s)

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