Nonlinear electromechanical analysis of axisymmetric thin circular plate based on flexoelectric theory

Flexoelectricity will dominate the electromechanical coupling of intelligent components in MEMS/NEMS due to its size-dependency. This paper focuses on investigating the flexoelectric responses of intelligent components of the circular plate type, which are commonly used in MEMS/NEMS. Utilizing Hamil...

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Published in:Scientific reports 2021-11, Vol.11 (1), p.21762-21762, Article 21762
Main Author: Ji, Xue
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Language:English
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Behavior
Boundary conditions
Deformation
Electric potential
Humanities and Social Sciences
Microelectromechanical systems
multidisciplinary
Science
Science (multidisciplinary)
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description Flexoelectricity will dominate the electromechanical coupling of intelligent components in MEMS/NEMS due to its size-dependency. This paper focuses on investigating the flexoelectric responses of intelligent components of the circular plate type, which are commonly used in MEMS/NEMS. Utilizing Hamilton’s principle, the nonlinear flexoelectric circular plate model is presented by combining von Kármán plate theory and flexoelectric theory. The equilibrium equations and all boundary conditions are obtained and then discretized. The nonlinear static bending of the simply supported axisymmetric flexoelectric circular plate is investigated by combining DQM and iteration method. The distributions of dimensionless bending deflection and electric potential are analyzed under different loads. Moreover, the nonlinear free vibration behaviors are also investigated by combining the Galerkin method and Lindstedt–Poincaré Method. The flexoelectric effect and stiffening effect of strain gradient are revealed. This paper will be helpful to promote the application of flexoelectric intelligent components of the circular plate type, which are encountered commonly in engineering.
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subjects 639/166
639/301
639/766
639/925
Behavior
Boundary conditions
Deformation
Electric potential
Humanities and Social Sciences
Microelectromechanical systems
multidisciplinary
Science
Science (multidisciplinary)
title Nonlinear electromechanical analysis of axisymmetric thin circular plate based on flexoelectric theory
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