Design, manufacturing, and testing of an adaptive composite panel with embedded shape memory alloy actuators

2014 ◽  
Vol 26 (15) ◽  
pp. 2055-2072 ◽  
Author(s):  
Simon Lacasse ◽  
Patrick Terriault ◽  
Charles Simoneau ◽  
Vladimir Brailovski
Keyword(s):  
Shape Memory Alloy ◽  
Shape Memory ◽  
Composite Panel ◽  
Adaptive Composite

Numerical simulation and verification of a curved morphing composite structure with embedded shape memory alloy wire actuators

2012 ◽  
Vol 24 (1) ◽  
pp. 89-98 ◽  
Author(s):  
Beom-Seok Jung ◽  
Jung-Pyo Kong ◽  
NingXue Li ◽  
Yoon-Mi Kim ◽  
Min-Saeng Kim ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Shape Memory Alloy ◽  
Shape Memory ◽  
Composite Structure ◽  
High Energy ◽  
Composite Panel ◽  
Design Parameters ◽  
Shape Memory Alloy Wire ◽  
Alloy Wire ◽  
Deformation Behaviors

Shape memory alloys have been actively studied in various fields in an attempt to utilize their high energy density. In particular, shape memory alloy wire-embedded composites can be used as load-bearing smart actuators without any additional manipulation, in which they act like a hinge joint. A shape memory alloy wire-embedded composite is able to generate various deformation behaviors via the combination of its shape memory alloy and matrix materials. Accordingly, a study of the various design parameters of shape memory alloy wire-embedded composites is required to facilitate the practical application of smart structures. In this research, a numerical simulation of a shape memory alloy wire-embedded composite is used to investigate the deformation behavior of a composite panel as a function of the composite width per shape memory alloy wire, composite thickness, and the eccentricity of the shape memory alloy wire. A curved morphing composite structure is fabricated to confirm the results of the numerical simulation. The deformation of the shape memory alloy wire-embedded composite panel is determined by measuring its radius of curvature. The simulated deformation behaviors are verified with the experimental results. In addition, an analysis of the deformation and internal stress of the composites is carried out. It can be used to obtain guidelines for the mechanical design of shape memory alloy wire-embedded composite panels.

Research on stability and nonlinear vibration of shape memory alloy hybrid laminated composite panel under aerodynamic and thermal loads

2016 ◽  
Vol 27 (20) ◽  
pp. 2851-2861 ◽  
Author(s):  
Zhenhua Zhang ◽  
Piao Sheng
Keyword(s):  
Shape Memory Alloy ◽  
Shape Memory ◽  
Nonlinear Vibration ◽  
Laminated Composite ◽  
Composite Panel ◽  
Dynamic Equations ◽  
Stable Region ◽  
Thermal Loads ◽  
Aerodynamic Pressure ◽  
The Stability

The stability and nonlinear vibration of a NiTi shape memory alloy hybrid laminated composite panel under aerodynamic and thermal loads are investigated. The partial differential dynamic equations of the shape memory alloy hybrid laminated composite panel are derived based on the large deformation theory, the first-order piston theory of aerodynamic pressure and a simple constitutive model of shape memory alloy. Then, the general expressions of multimode discrete equations of the shape memory alloy hybrid laminated composite panel are obtained for the first time using Galerkin method. The stability of the shape memory alloy hybrid laminated composite panel is analyzed first based on the Routh–Hurwitz criteria, and the results show that the temperature and aerodynamic pressure parameter plane can be divided into a flat and stable region, a flutter region, and a buckling region, and the flat and stable region can be greatly enlarged as the shape memory alloy volume fraction increases. Meanwhile, numerical results of the dynamic equations show that the shape memory alloy hybrid laminated composite panel can produce various dynamic motions, and the bifurcation characteristics of the responses with temperature obtained by numerical method coincide well with the stability boundaries determined by analytical method.

scholarly journals Flutter and Thermal Buckling Analysis for Composite Laminated Panel Embedded with Shape Memory Alloy Wires in Supersonic Flow

2016 ◽  
Vol 2016 ◽  
pp. 1-12 ◽  
Author(s):  
Chonghui Shao ◽  
Dengqing Cao ◽  
Yuqian Xu ◽  
Hai Zhao
Keyword(s):  
Shape Memory Alloy ◽  
Shape Memory ◽  
Volume Fraction ◽  
Plate Theory ◽  
Equations Of Motion ◽  
Thermal Buckling ◽  
Composite Panel ◽  
Limit Cycle Oscillation ◽  
Classical Plate Theory ◽  
Aerodynamic Pressure

The flutter and thermal buckling behavior of laminated composite panels embedded with shape memory alloy (SMA) wires are studied in this research. The classical plate theory and nonlinear von-Karman strain-displacement relation are employed to investigate the aeroelastic behavior of the smart laminated panel. The thermodynamic behaviors of SMA wires are simulated based on one-dimensional Brinson SMA model. The aerodynamic pressure on the panel is described by the nonlinear piston theory. Nonlinear governing partial differential equations of motion are derived for the panel via the Hamilton principle. The effects of ply angle of the composite panel, SMA layer location and orientation, SMA wires temperature, volume fraction and prestrain on the buckling, flutter boundary, and amplitude of limit cycle oscillation of the panel are analyzed in detail.

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