Electromechanical responses of piezoelectric nanoplates with flexoelectricity
发布时间：2025-04-30
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- 发布时间：
- 2025-04-30
- 论文名称：
- Electromechanical responses of piezoelectric nanoplates with flexoelectricity
- 发表刊物：
- Acta Mechanica
- 摘要：
- Flexoelectricity, representing the coupling between electrical polarizations and strain gradients, should be taken into account in the analysis of electromechanical responses of nanostructures where large strain
gradients are expected. In this paper, we will explore the influence of flexoelectricity on the electromechanical
coupling behavior of a simply supported piezoelectric nanoplate by using the Kirchhoff plate theory. The
governing equations and corresponding boundary conditions are deduced from Hamilton’s principle, and
the analytical solutions are obtained for the deflection and natural frequency. The results indicate that the
deflections predicted by the present model are smaller than those calculated by the classical one which only
considers piezoelectricity, while the frequencies exhibit the opposite trend. In addition, the flexoelectric effect
is more prominent for thinner plates; the differences of the deflections or frequencies between the two models
are gradually diminishing with an increase in the plate thickness. The current work may contribute to the
understanding of the higher-order electromechanical coupling mechanism. Moreover, the modified plate model
can be utilized to accurately design novel piezoelectric nanoplate-based sensors in nanoelectromechanical
systems.
- 合写作者：
- Yang Wenjun, Liang Xu, Shen shengping
- 是否译文：
- 否
- 发表时间：
- 2015-04-05