电磁场作用下粘弹性功能梯度碳纳米管增强压电微板中波传播的解析建模

IF 4.2 Q2 NANOSCIENCE & NANOTECHNOLOGY
A. Ghorbanpour Arani, M. Jamali, M. Mosayyebi, R. Kolahchi
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引用次数: 17

摘要

功能梯度碳纳米管增强压电复合材料微孔板的波传播分析是本研究的主要内容。为了给出一个真实的模型,假定系统的材料性质为粘弹性,并采用Kelvin-Voigt模型。FG-CNTRPC粘弹性微孔板受纵向磁场和三维电场作用。假设碳纳米管在FG-CNTRPC微孔板中的分布为均匀分布,并将微孔板的周长模拟为Visco-Pasternak基础。本文将拟三维正弦剪切变形板理论的原始公式推广到波的传播分析中,并基于Eringen的非局部理论考虑了尺寸效应。为了计算无量纲频率,采用了截止频率和逃逸频率解析解。本文研究了碳纳米管体积分数、电磁场和弹性介质对粘弹性FG-CNTRPC微孔板无因次频率的影响。进一步研究了小尺度参数对系统截止频率和逃逸频率的影响。结果表明,随着小尺度参数的增大,无量纲截止频率和逃逸频率减小。外加磁场和外加电压是控制FG-CNTRPC粘弹性微孔板波传播的重要参数。研究结果对基于智能控制和传感器应用的复合系统的研究和设计具有一定的指导意义。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Analytical modeling of wave propagation in viscoelastic functionally graded carbon nanotubes reinforced piezoelectric microplate under electro-magnetic field
Wave propagation analysis of a functionally graded carbon nanotubes reinforced piezoelectric composite (FG-CNTRPC) microplate is the major main of the present research. In order to present a realistic model, the material properties of the system are assumed viscoelastic and the Kelvin–Voigt model is applied. The viscoelastic FG-CNTRPC microplate is subjected to longitudinal magnetic and three-dimensional electric fields. The distribution of carbon nanotubes in FG-CNTRPC microplate is supposed as uniform distribution and surrounding circumference is simulated as Visco-Pasternak foundation. The original formulation of the quasi-three-dimensional sinusoidal shear deformation plate theory is here extended to the wave propagation analysis and the size effects are considered based on Eringen’s nonlocal theory. In order to calculate the dimensionless frequency, cut-off and escape frequencies analytical solution is applied. In this article, the influences of the volume fraction of carbon nanotubes, electro-magnetic fields and elastic medium on the dimensionless frequency of viscoelastic FG-CNTRPC microplate are investigated. Furthermore, the effect of small-scale parameter on the cut-off and escape frequencies of the system will be studied. Results demonstrate that the dimensionless cut-off and escape frequencies decrease with increasing the magnitude of small-scale parameter. In addition, the imposed magnetic field and external voltage are significant parameters for controlling wave propagation of the viscoelastic FG-CNTRPC microplate. Results of this investigation can be helpful for the study and design of composite systems based on smart control and sensor applications.
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来源期刊
CiteScore
6.00
自引率
1.70%
发文量
24
期刊介绍: Proceedings of the Institution of Mechanical Engineers Part N-Journal of Nanomaterials Nanoengineering and Nanosystems is a peer-reviewed scientific journal published since 2004 by SAGE Publications on behalf of the Institution of Mechanical Engineers. The journal focuses on research in the field of nanoengineering, nanoscience and nanotechnology and aims to publish high quality academic papers in this field. In addition, the journal is indexed in several reputable academic databases and abstracting services, including Scopus, Compendex, and CSA's Advanced Polymers Abstracts, Composites Industry Abstracts, and Earthquake Engineering Abstracts.
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