Bending Analysis of Circular Piezoelectric Semiconductor Plates Incorporating Flexoelectricity  

作　　者：Liang Sun Zhengguang Xiao Chunli Zhang Weiqiu Chen 

机构地区：[1]Department of Engineering Mechanics,Zhejiang University,Hangzhou,310027,China [2]Department of Basic Courses,Naval University of Engineering,Wuhan,430033,China [3]Huanjiang Laboratory,Zhuji,311816,China

出　　处：《Acta Mechanica Solida Sinica》2024年第4期613-621,共9页固体力学学报（英文版）

基　　金：supported by the National Natural Science Foundation of China(Nos.12172326,11972319,and 12302210);the Natural Science Foundation of Zhejiang province,China(No.LR21A020002);the specialized research projects of Huanjiang Laboratory.

摘　　要：Based on the three-dimensional(3D)basic equations of piezoelectric semiconductors(PSs),we establish a two-dimensional(2D)deformation-polarization-carrier coupling bending model for PS structures,taking flexoelectricity into consideration.The analytical solutions to classical flexure of a clamped circular PS thin plate are derived.With the derived analytical model,we numerically investigate the distributions of electromechanical fields and the concentration of electrons in the circular PS thin plate under an upward concentrated force.The effect of flexoelectricity on the multi-field coupling responses of the circular PS plate is studied.The obtained results provide theoretical guidance for the design of novel PS devices.

关 键 词：Piezoelectric semiconductor Plate model FLEXOELECTRICITY Multi-field coupling 

分 类 号：TN304[电子电信—物理电子学]