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A review on shape memory alloys with applications to morphing aircraft

A review on shape memory alloys with applications to morphing aircraft
A review on shape memory alloys with applications to morphing aircraft
Shape memory alloys (SMAs) are a unique class of metallic materials with the ability to recover their original shape at certain characteristic temperatures (shape memory effect), even under high applied loads and large inelastic deformations, or to undergo large strains without plastic deformation or failure (super-elasticity). In this review, we describe the main features of SMAs, their constitutive models and their properties. We also review the fatigue behavior of SMAs and some methods adopted to remove or reduce its undesirable effects. SMAs have been used in a wide variety of applications in different fields. In this review, we focus on the use of shape memory alloys in the context of morphing aircraft, with particular emphasis on variable twist and camber, and also on actuation bandwidth and reduction of power consumption. These applications prove particularly challenging because novel configurations are adopted to maximize integration and effectiveness of SMAs, which play the role of an actuator (using the shape memory effect), often combined with structural, load-carrying capabilities. Iterative and multi-disciplinary modeling is therefore necessary due to the fluid–structure interaction combined with the nonlinear behavior of SMAs.
63001
Barbarino, S.
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Saavedra Flores, E.
ed7c1d5c-af83-488a-af40-bc7c137f8cc1
Ajaj, R.M.
ff8ce68d-2ba5-449e-83da-f2be54e6d409
Dayyani, I.
f88bf87d-4cd1-4f94-8df9-56a1664ad948
Friswell, M.I.
e1f48951-f82e-4301-9a71-e32ce1188b00
Barbarino, S.
11bb1938-8230-47c0-9736-d96a43dfdb56
Saavedra Flores, E.
ed7c1d5c-af83-488a-af40-bc7c137f8cc1
Ajaj, R.M.
ff8ce68d-2ba5-449e-83da-f2be54e6d409
Dayyani, I.
f88bf87d-4cd1-4f94-8df9-56a1664ad948
Friswell, M.I.
e1f48951-f82e-4301-9a71-e32ce1188b00

Barbarino, S., Saavedra Flores, E., Ajaj, R.M., Dayyani, I. and Friswell, M.I. (2014) A review on shape memory alloys with applications to morphing aircraft. Smart Materials and Structures, 23 (6), 63001. (doi:10.1088/0964-1726/23/6/063001).

Record type: Article

Abstract

Shape memory alloys (SMAs) are a unique class of metallic materials with the ability to recover their original shape at certain characteristic temperatures (shape memory effect), even under high applied loads and large inelastic deformations, or to undergo large strains without plastic deformation or failure (super-elasticity). In this review, we describe the main features of SMAs, their constitutive models and their properties. We also review the fatigue behavior of SMAs and some methods adopted to remove or reduce its undesirable effects. SMAs have been used in a wide variety of applications in different fields. In this review, we focus on the use of shape memory alloys in the context of morphing aircraft, with particular emphasis on variable twist and camber, and also on actuation bandwidth and reduction of power consumption. These applications prove particularly challenging because novel configurations are adopted to maximize integration and effectiveness of SMAs, which play the role of an actuator (using the shape memory effect), often combined with structural, load-carrying capabilities. Iterative and multi-disciplinary modeling is therefore necessary due to the fluid–structure interaction combined with the nonlinear behavior of SMAs.

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e-pub ahead of print date: 10 April 2014
Published date: June 2014
Organisations: Inst. Sound & Vibration Research, Aerodynamics & Flight Mechanics Group

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Local EPrints ID: 361915
URI: http://eprints.soton.ac.uk/id/eprint/361915
PURE UUID: 66cc856a-652b-448e-a8de-6be9fd1fe508

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Date deposited: 07 Feb 2014 09:57
Last modified: 16 Dec 2019 20:27

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Contributors

Author: S. Barbarino
Author: E. Saavedra Flores
Author: R.M. Ajaj
Author: I. Dayyani
Author: M.I. Friswell

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