THERMOELASTIC VIBRATION AND BUCKLING ANALYSIS OF FUNCTIONALLY GRADED PIEZOELECTRIC CYLINDRICAL SHELLS
THERMOELASTIC VIBRATION AND BUCKLING ANALYSIS OF FUNCTIONALLY GRADED PIEZOELECTRIC CYLINDRICAL SHELLS
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DOI：
10.1016/j.apm.2009.11.024
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发表时间：
2010-09
影响因子：
5
通讯作者：
G. Sheng;X. Wang
中科院分区：
文献类型：
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作者：
G. Sheng;X. Wang
本文介绍了功能梯度压电圆柱体的热弹性振动和屈曲特性的研究报告，其中功能梯度压电圆柱壳由沿厚度方向具有梯度变化的压电材料制成，例如压电性和介电系数等。这里，利用哈密顿原理和电势沿圆柱壳厚度方向二次变化的麦克斯韦方程和一阶剪切变形理论，同时考虑正压电效应和逆压电效应，研究了由 分别计算了 BaTiO3/PZT−4、BaTiO3/PZT−5A 和 BaTiO3/PVDF。描述了材料成分（体积分数指数）、热载荷、施加的外部电压和壳体几何参数对自由振动特性的影响，并获得了轴向临界载荷、临界温度和临界控制电压。
This paper presents the report of an investigation into thermoelastic vibration and buckling characteristics of the functionally graded piezoelectric cylindrical, where the functionally graded piezoelectric cylindrical shell is made from a piezoelectric material having gradient change along the thickness, such as piezoelectricity and dielectric coefficient et al. Here, utilizing Hamilton’s principle and the Maxwell equation with a quadratic variation of the electric potential along the thickness direction of the cylindrical shells and the first-order shear deformation theory, and taking into account both the direct piezoelectric effect and the converse piezoelectric effect, the thermoelastic vibration and buckling characteristics of functionally graded piezoelectric cylindrical shells composed of BaTiO3/PZT−4, BaTiO3/PZT−5A and BaTiO3/PVDF are, respectively, calculated. The effects of material composition (volume fraction exponent), thermal loading, external voltage applied and shell geometry parameters on the free vibration characteristics are described, and the axial critical load, critical temperature and critical control voltage are obtained.