Axisymmetric Free Vibration Analysis of Functionally Graded Sandwich Annular Plates: A Quasi-3D Shear and Normal Deformable Model

被引:7
|
作者
Akbari, M. [1 ]
Sadighi, M. [1 ]
Kiani, Y. [2 ]
Eslami, M. R. [1 ]
机构
[1] Amirkabir Univ Technol, Mech Engn Dept, Tehran, Iran
[2] Shahrekord Univ, Fac Engn, Shahrekord, Iran
关键词
FG sandwich annular plate; quasi-3D plate model; axisymmetric natural frequency; GDQM; shear and normal deformability; DIFFERENTIAL QUADRATURE; SHELLS;
D O I
10.1142/S0219455423500864
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
This paper concentrates on axisymmetric free vibration of functionally graded (FG) sandwich annular plates obtained using a quasi-3D plate theory. Motion equations and corresponding boundary conditions are established via the mentioned plate theory which takes into consideration the non-uniform shear strains across the thickness and also stretching trough the thickness. Generalized differential quadrature method (GDQM) is applied to discrete the annular sandwich plate governing equations. The results of this study are applicable for optional thick plates since the adopted theory considers the shear and normal strains across the thickness direction. Outcoming results are verified on the basis of information accessible in the open literature. To investigate the influences of power law index of functionally graded materials (FGMs) and dimensions of the sandwich annular plate layers, parametric studies are presented. It was well demonstrated that the applied theory precisely predicts the natural frequencies of FG annular sandwich plates with arbitrary thickness.
引用
收藏
页数:24
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