Paper number 510
|VIBRATION CHARACTERISTICS OF CFRP LAMINATES WITH EMBEDDED SHAPE MEMORY ALLOY FIBERS|
Masaki Sato1, Hideki Sekine1, and Yuichi Hayakawa1
1Department of Aeronautics and Space Engineering, Tohoku University
Aramaki Aza Aoba 01, Aoba-ku, Sendai 980-8579, Japan
|Summary||The present paper examines vibration characteristics of symmetric CFRP laminates with embedded shape memory alloy fibers for passive vibration control by tailoring laminate configuration. The effect of recovery stresses induced by the embedded SMA fibers is taken into consideration in the free vibration analysis. With the use of two in-plane lamination parameters in addition to four out-of-plane lamination parameters, the shape memory effect on fundamental frequencies is discussed for the case of simply supported edges. The laminate configurations corresponding to six lamination parameters are also obtained by using a mathematical programming method. The results give a feasible region of two in-plane lamination parameters. By using two in-plane lamination parameters as design variables and the obtained feasible region as a constraint, the optimal laminate configurations to maximize the fundamental frequencies at the austenite phase are obtained.
||Keywords|| shape memory alloy fiber, Shape memory effect, CFRP, symmetric laminate, fundamental frequency, vibration control, laminate configuration, lamination parameter.
Theme : Smart Materials and Smart Manufacturing
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