Shape Memory Alloy Morphing Airfoil Sections

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Shape memory alloys (SMA) provide common solid state actuators with reliable and unique characteristics. Their special behavior is based on a reversible phase transformation and can provide high power density, induced strain and block force which render them indispensable for use in morphing structures that require large shape changes while space and weight restrictions are imposed. Yet, their implementation into morphing structures faces challenges related to their complex multi-disciplinary behavior, their interaction with the passive structural components, geometrical nonlinearity due to large shape changes, the lack of experimental data, and above all, the lack of modelling tools which can robustly simulate the complex thermomechanical behavior and make feasible their design. We briefly review the material characterization process, the developed modelling tools which can simulate the complex thermomechanical response of morphing structures with SMA actuators which can undergo large shape changes under severe geometric nonlinearity, and the testing of prototype morphing components. The design and validation of two morphing structural concepts for curvature control are presented. A morphing strip capable to deform towards a single target shape is initially presented. Subsequently, a morphing airfoil concept implementing an articulated mechanism capable to achieve multiple target shapes for aerodynamic load control is presented. The challenging task to continuously adapt the structural shape to time varying demands, dictates the use of antagonistic actuator configurations to maximize and control the range of morphing. The previously mentioned morphing airfoil configuration is used to alleviate the aerodynamic fatigue loads in wind turbine blades and aircraft wings.

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Edited by:

Pietro Vincenzi

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112-120

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D. Saravanos et al., "Shape Memory Alloy Morphing Airfoil Sections", Advances in Science and Technology, Vol. 101, pp. 112-120, 2017

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October 2016

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$41.00

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[1] C. J. Thill, B. I. Etches, K. Potter, P. Weaver, Morphing Skins, Aeronautical Journal 112 (2008) 117-139.

DOI: https://doi.org/10.1017/s0001924000002062

[2] D.C. Lagoudas, Shape memory alloys: Modeling and Engineering Applications., Springer, (2008).

[3] K. Otsuka, C.M. Wayman, Shape Memory Materials, Cambridge University Press, (1998).

[4] K. Tanaka K., A Thermomechanical Sketch of Shape Memory Effect - One-Dimensional Tensile Behavior, Res Mechanica 18 (1986) 251-263.

[5] M. Achenbach, A Model for an Alloy with Shape Memory, International Journal of Plasticity 5, (1989) 371-395.

[6] C. Liang, C.A. Rogers, One-Dimensional Thermomechanical Constitutive Relations for Shape Memory Materials, Journal of Intelligent Material Systems and Structures (1990) 207-234.

DOI: https://doi.org/10.1177/1045389x9000100205

[7] L. C. Brinson, One-Dimensional Constitutive Behavior of Shape Memory Alloys: Thermomechanical Derivation with Non-Constant Material Functions and Redefined Martensite Internal Variable, Journal of Intelligent Material Systems and Structures 4 (1993).

DOI: https://doi.org/10.1177/1045389x9300400213

[8] F. Auricchio F, E. Sacco E., Thermo-mechanical modelling of a superelastic shape-memory wire under cyclic stretching-bending loadings, International Journal of Solids and Structures 38 (2001) 6123-6145.

DOI: https://doi.org/10.1016/s0020-7683(00)00282-1

[9] J. A. Shaw, A thermomechanical model for a 1-D shape memory alloy wire with propagating instabilities. International Journal of Solids and Structures 39 (2002) 1275-1305.

DOI: https://doi.org/10.1016/s0020-7683(01)00242-6

[10] C. Liang, C.A. Rogers, A multi-dimensional constitutive model for shape memory alloys, Journal of Engineering Mathematics 26 (1992) 429-443.

[11] J. G. Boyd, D.C. Lagoudas, A thermodynamical constitutive model for shape memory materials. Part I. The monolithic shape memory alloy, International Journal of Plasticity 12 (1996) 805-842.

DOI: https://doi.org/10.1016/s0749-6419(96)00030-7

[12] J. Lubliner, F. Auricchio F., Generalized plasticity and shape-memory alloys, International Journal of Solids and Structures 33 (1996) 991-1003.

DOI: https://doi.org/10.1016/0020-7683(95)00082-8

[13] B. Raniecki, L. Lexcellent, Thermodynamics of isotropic pseudoelasticity in shape memory alloys, European Journal of Mechanics a-Solids 17 (1998) 185-205.

DOI: https://doi.org/10.1016/s0997-7538(98)80082-x

[14] P. Thamburaja, Constitutive equations for martensitic reorientation and detwinning in shapememory alloys, Journal of the Mechanics and Physics of Solids 53 (2005) 825-856.

DOI: https://doi.org/10.1016/j.jmps.2004.11.004

[15] M. Panico, L.C. Brinson, A three-dimensional phenomenological model for martensite reorientation in shape memory alloys, Journal of the Mechanics and Physics of Solids 55 (2007) 2491-2511.

DOI: https://doi.org/10.1016/j.jmps.2007.03.010

[16] D. Lagoudas, D. Hartl, Y. Chemisky, L. Machado, P. Popov, Consitutive model for the numerical analysis of phase transformation in polycrystalline shape memory alloys. International Journal of Plasticity 32-33 (2012) 155-183.

DOI: https://doi.org/10.1016/j.ijplas.2011.10.009

[17] C.A. Martin, J. D. Bartley-Cho, J.S. Flanagan, B.F. Carpenter, Design and Fabrication of Smart Wing Wind Tunnel Model and SMA Control Surfaces. In Proc. SPIE 3674, Smart Structures and Materials 3674 (1999) 237–48.

DOI: https://doi.org/10.1117/12.351562

[18] R. Chandra, Active Shape Control of Composite Blades Using Shape Memory Actuation. Smart Materials and Structures, (2001) 1018 -24.

DOI: https://doi.org/10.1088/0964-1726/10/5/318

[19] H. Prahlad, I. Chopra, Design of a Variable Twist Tiltrotor Blade Using Shape Memory Alloy (SMA) Actuators. Proceedings of the SPIE - The International Society for Optical Engineering 4327 301 (2001) 46-59.

DOI: https://doi.org/10.1117/12.436559

[20] D. M. Elzey, A.Y.N. Sofla, H.N.G. Wadley, A Bio-Inspired High-Authority Actuator for Shape Morphing Structures. Proceedings of SPIE 5053 (2003) 92–100.

DOI: https://doi.org/10.1117/12.484745

[21] R. Rugeri, D. Arbogast, R. Bussom, Wind Tunnel Testing of a Lightweight One-Quarter-Scale Actuator Utilizing Shape Memory Alloy. In 49th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, (2008) 1–10.

DOI: https://doi.org/10.2514/6.2008-2279

[22] J. P. Florance, A. W. Burner, G. A. Fleming, C. A. Hunter, S.S. Graves, C.A. Martin, Contributions of the NASA Langley Research Center to the DARPA/AFRL/NASA/Northrop Grumman Smart Wing Program. 44th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, (2003).

DOI: https://doi.org/10.2514/6.2003-1961

[23] J.J. Epps, I. Chopra, In-Flight Tracking of Helicopter Rotor Blades Using Shape Memory Alloy Actuators. Design 10 (2001) 104–11.

DOI: https://doi.org/10.1088/0964-1726/10/1/310

[24] J.K. Strelec, D.C. Lagoudas, Fabrication and Testing of a Shape Memory Alloy Actuated Reconfigurable Wing. Smart Structures and Materials (2002), 1–14.

DOI: https://doi.org/10.1117/12.474664

[25] G. Song, N. Ma, Robust Control of a Shape Memory Alloy Wire Actuated Flap. Smart Materials and Structures 16 (2007) 51–57.

DOI: https://doi.org/10.1088/0964-1726/16/6/n02

[26] U. Icardi, L. Ferrero, Preliminary Study of an Adaptive Wing with Shape Memory Alloy Torsion Actuators. Materials and Design 30 (2009) 4200–4210.

DOI: https://doi.org/10.1016/j.matdes.2009.04.045

[27] V. P. Galantai, A.Y.N. Sofla, S.A. Meguid, K.T. Tan, W. K. Yeo, Bio-Inspired Wing Morphing for Unmanned Aerial Vehicles Using Intelligent Materials. International Journal of Mechanics and Materials in Design 8 (2012) 71–79.

DOI: https://doi.org/10.1007/s10999-011-9176-0

[28] A.Y.N. Sofla, D.M. Elzey, H.N.G. Wadley, Two-Way Antagonistic Shape Actuation Based on the One-Way Shape Memory Effect. Journal of Intelligent Material Systems and Structures 19 (9)(2008) 1017–27.

DOI: https://doi.org/10.1177/1045389x07083026

[29] A.G. Solomou, T.T. Machairas, D.A. Saravanos, A coupled thermomechanical beam finite element for the time simulation of shape memory alloy actuators. Journal of Intelligent. Material System and Structures 25(7) (2014) 890–907.

DOI: https://doi.org/10.1177/1045389x14526462

[30] A.G. Solomou, T.T. Machairas, D.A. Saravanos, D.J. Hartl, D. C. Lagoudas, A coupled layered thermomechanical shape memory alloy beam element with enhanced higher order temperature field approximations. Journal of Intelligent Material Systems and Structures (2016).

DOI: https://doi.org/10.1177/1045389x16629572