An analytical approach for nonlinear vibration and thermal stability of shape memory alloy hybrid laminated composite beams

In this paper, the thermal buckling and postbuckling behaviours of a composite beam with embedded shape memory alloy (SMA) wires are investigated experimentally and analytically. For the purpose of enhancing the critical buckling temperature and reduction of the lateral deflection on thermal buckling and postbuckling, the characteristics of thermal buckling are investigated through the use of the shape recovery force. The results of thermal buckling tests using uniformly heated and clamped composite beam specimens with embedded SMA wire actuators are discussed. The temperature-load-deflection behaviour records present quantitatively how the shape recovery force affects the thermal buckling behaviour. For this experiment, we considered the initial geometric imperfections, the slenderness ratio of the beam and the embedding position of the SMA wire actuators. The experimental results show that the shape recovery force reduces the thermal expansion of the composite laminated beam. This results in an increase of the critical buckling temperature and a reduction of the lateral deflection of the beams.

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Thermodynamic analysis of the effect of annealing on the thermal stability of a Cu–Al–Ni–Mn shape memory alloy

Thermochimica Acta ◽

10.1016/j.tca.2015.03.024 ◽

2015 ◽

Vol 608 ◽

pp. 1-6 ◽

Cited By ~ 20

Author(s):

E.M. Mazzer ◽

C.S. Kiminami ◽

C. Bolfarini ◽

R.D. Cava ◽

W.J. Botta ◽

...

Keyword(s):

Thermal Stability ◽

Shape Memory Alloy ◽

Shape Memory ◽

Thermodynamic Analysis ◽

Thermal Stability Of

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Thermal stability of Ni54Mn25Ga20.9Gd0.1 high-temperature shape memory alloy with large reversible strain

Materials Letters ◽

10.1016/j.matlet.2014.02.088 ◽

2014 ◽

Vol 123 ◽

pp. 250-253 ◽

Cited By ~ 9

Author(s):

Xin Zhang ◽

Jiehe Sui ◽

Zheyi Yang ◽

Xiaohang Zheng ◽

Wei Cai

Keyword(s):

Thermal Stability ◽

High Temperature ◽

Shape Memory Alloy ◽

Shape Memory ◽

Reversible Strain ◽

Thermal Stability Of

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

Journal of Intelligent Material Systems and Structures ◽

10.1177/1045389x16642300 ◽

2016 ◽

Vol 27 (20) ◽

pp. 2851-2861 ◽

Cited By ~ 7

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.

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