Effect of applied electric potential and micro length scale parameters on the electroelastic analysis of three-layered shear deformable micro-shell

IF 2.1 3区 工程技术 Q2 ENGINEERING, CIVIL Smart Structures and Systems Pub Date : 2021-09-01 DOI:10.12989/SSS.2021.28.3.305
Yang Yang, Keyong Shen, Gholamreza Ghasemian Talkhunche, M. Arefi
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Abstract

This paper uses higher-order shear deformation theory and modified couple stress theory (MCST) to the electroelastic results of FG micro-shell integrated with piezoelectric thin sheets subjected to electrical and mechanical loads rested on Pasternak's foundation. Third-order shear deformation theory (TSDT) is used for the description of the displacement field. Effect of micro-size is applied using MCST with the introduction of one micro-length scale parameter. Governing equations are derived based on the principle of virtual work. Micro-shell is composed of a FG micro core and two piezoelectric hollow shells. The numerical results are obtained for the simply-supported boundary conditions. Longitudinal and radial displacements are presented in terms of important parameters such as applied electric potentials, micro length scale parameter, dimensionless geometric parameters and two parameters of Pasternak's foundation.
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外加电势和微尺度参数对三层剪切变形微壳体电弹性分析的影响
本文利用高阶剪切变形理论和修正的耦合应力理论(MCST),对Pasternak地基上FG微壳体与压电薄板在电载荷和机械载荷作用下的电弹性结果进行了分析。位移场的描述采用三阶剪切变形理论。在引入一个微长度尺度参数的情况下,使用MCST应用微尺寸效应。基于虚功原理推导了控制方程。微壳体由一个FG微芯和两个压电空心壳组成。得到了简支边界条件下的数值结果。根据Pasternak基础的外加电势、微尺度参数、无量纲几何参数和两个参数等重要参数,给出了纵向和径向位移。
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来源期刊
Smart Structures and Systems
Smart Structures and Systems 工程技术-工程:机械
CiteScore
6.50
自引率
8.60%
发文量
0
审稿时长
9 months
期刊介绍: An International Journal of Mechatronics, Sensors, Monitoring, Control, Diagnosis, and Management airns at providing a major publication channel for researchers in the general area of smart structures and systems. Typical subjects considered by the journal include: Sensors/Actuators(Materials/devices/ informatics/networking) Structural Health Monitoring and Control Diagnosis/Prognosis Life Cycle Engineering(planning/design/ maintenance/renewal) and related areas.
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