Free vibration of functionally graded sandwich plates in thermal environments  

作　　者：Dongdong Li Zongbai Deng Guoping Chen 

机构地区：[1]State Key Laboratory of Mechanics and Control of Mechanical Structures,Nanjing University of Aeronautics and Astronautics,Nanjing,China

出　　处：《International Journal of Mechanical System Dynamics》2023年第1期39-47,共9页国际机械系统动力学学报（英文）

基　　金：supported by a project funded by the priority Academic Program Development of Jiangsu Higher Education Institutions.

摘　　要：This paper presents an analytical solution for the free vibration of functionally graded material(FGM)sandwich plates in a thermal environment.An equivalentsingle‐layer(ESL)plate theory with four variables is used to obtain the solution.Two types of sandwich plates are examined in this study:one with FGM face sheets and a homogeneous core and the other with an FGM core and homogeneous face sheets.The governing equations of motion are derived based on Hamilton's principle and then solved using the Navier method.The results of natural frequencies of simply supported FGM sandwich plates are compared with the available solutions in the literature.The effects of volume fraction distribution,geometrical parameters,and temperature increments on the free vibration characteristics are discussed in detail.

关 键 词：functionally graded material sandwich plate equivalent‐single‐layer theory free vibration 

分 类 号：TB34[一般工业技术—材料科学与工程]