Size dependent free vibration analysis of functionally graded piezoelectric micro/nano shell based on modified couple stress theory with considering thickness stretching effect  

作　　者：Maryam Lori Dehsaraji Mohammad Arefi Abbas Loghman 

机构地区：[1]Department of Solid Mechanics,Faculty of Mechanical Engineering,University of Kashan,Kashan,Iran

出　　处：《Defence Technology（防务技术）》2021年第1期119-134,共16页Defence Technology

基　　金：The authors would like to thank the Iranian Nanotechnology Development Committee for their financial support.

摘　　要：Higher-order shear and normal deformation theory is used in this paper to account thickness stretching effect for free vibration analysis of the cylindrical micro/nano shell subjected to an applied voltage and uniform temperature rising.Size dependency is included in governing equations based on the modified couple stress theory.Hamilton’s principle is used to derive governing equations of the cylindrical micro/nano shell.Solution procedure is developed using Navier technique for simply-supported boundary conditions.The numerical results are presented to investigate the effect of significant parameters such as some dimensionless geometric parameters,material properties,applied voltages and temperature rising on the free vibration responses.

关 键 词：Thickness stretching effect Shear and normal deformation theory Vibration analysis Length scale parameter Modified couple stress theory 

分 类 号：TB383.1[一般工业技术—材料科学与工程]