Affiliation:
1. University of Bologna
2. Virginia Polytechnic Institute and State University
Abstract
Shape memory alloys (SMA) can develop large stresses in the constrained recovery mode. Heating generates tension in the material, depending upon the cooling temperature some residual stress may remain after actuation. Brinson's one dimensional phenomenological model can be used to predict the stress/temperature loading paths in constrained recovery; however the model shows some discrepancies with experimental data when the SMA is cooled at low temperatures. This paper examines this behavior and proposes a modification to the Brinson model that better represents constrained recovery at low temperatures.
Reference13 articles.
1. Sittner, P., Vokoun, D., Dayananda, G. N., and Stalmans, R., 2000. “Recovery stress generation in shape memory Ti50Cu5 thin wires”. Materials Science and Engineering, pp. 298-311.
2. Kato
H.
, InagakiN., and SasakiK., 2004. “A one-dimensional modelling of constrained shape memory effect”. Acta Materialia, 52, pp. 3375–3382.
3. Li
Y.
, CuiL. S., XuX. B., and YangD. Z., 2003. “Constrained phase-transformation of a TiNi shape-memory alloy”. Metallurgical and Materials Transactions A, 34A, pp. 219–223.
4. Turner
T. L.
, 2000. “A new thermoelastic model for analysis of shape memory alloy hybrid composites”. Journal of Intelligent Material Systems and Structures, 11, pp. 382–394.
5. Gao, X., Turner, T. L., Burton, D., and Brinson, L. C., 2005. “Finite element analysis of adaptive-stiffening and shape-control sma hybrid composites”. In Smart Structures and Materials 2005: Active Materials: Behavior and Mechanics, W. D. Armstrong, ed., Vol. 5761, SPIE, pp. 406–416.
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