Analysis of the actuation properties of charged multilayer films

被引:10
作者
Allahyarov, Elshad [1 ,2 ,3 ]
Loewen, Hartmut [1 ]
Zhu, Lei [3 ]
机构
[1] Univ Dusseldorf, Inst Theoret Phys Weiche Mat 2, D-40225 Dusseldorf, Germany
[2] Russian Acad Sci IVTAN, Joint Inst High Temp, Dept Theoret, Moscow 125412, Russia
[3] Case Western Reserve Univ, Dept Macromol Sci & Engn, Cleveland, OH 44106 USA
基金
美国国家科学基金会;
关键词
CONNECTIVITY; COEFFICIENT; ELECTRETS; LAYER;
D O I
10.1063/1.4906064
中图分类号
O59 [应用物理学];
学科分类号
摘要
Combining elasticity theory with electrostatics, we calculate the actuation response of a charged multilayer film, which is composed of consecutively stacked piezoelectric and polymeric elastomer layers, with respect to an applied voltage. Depending on the individual material properties and polarity of the applied voltage, we show that the composite multilayer can exhibit actuation properties which are considerably better than the response of the individual constituents. It is also shown that there is a window for applied voltages within which the thickness of the composite film expands, a condition that cannot be achieved in single layer films. In particular, we apply and evaluate our theory for various piezoelectric and dielectric elastomers. The results obtained will be helpful to develop tailored composite materials with specific actuation characteristics. (C) 2015 AIP Publishing LLC.
引用
收藏
页数:14
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