FREE VIBRATION AND BUCKLING ANALYSIS OF COMPOSITE LAMINATED SHELLS USING THE REFINED ZIGZAG THEORY

被引：0

作者：

Zhang H. ^{[1
]}

Gao Y. ^{[2
,3
]}

He D. ^{[1
]}

Yang W. ^{[4
]}

机构：

[1] Department of Aeronautics and Astronautics, Shenyang Aerospace University, Shenyang

[2] College of Aerospace Science and Engineering, National University of Defense Technology, Changsha

[3] Beijing Institute of Astronautical Systems Engineering, Beijing

[4] Department of Mechanics, Huazhong University of Science and Technology, Wuhan

来源：

Journal of Theoretical and Applied Mechanics (Poland) | 2022年 / 60卷 / 03期

关键词：

buckling; composite; free vibration; refined zigzag theory; shell;

D O I：

10.15632/JTAM-PL/150847

中图分类号：

学科分类号：

摘要：

In this study, a new composite laminated shell model is proposed for free vibration and stability analysis based on the refined zigzag theory (RZT). In contrast to the published shell models based on the first-order shear deformation theory (FSDT), piecewise-linear zigzag functions are utilized to provide a more realistic representation of deformation states of a transverse shear-flexible shell. In the present formulation, the governing equations and boundary conditions of composite laminated shells are established by d'Alembert's principle to obtain natural frequencies and critical buckling loadings. In order to evaluate the effectiveness and performance of the present new model for composite laminated shells, examples of free vibration and buckling analysis are carried out for cylindrical and spherical shells involving different lamination schemes and design parameters. The results are compared with the three dimensional (3D) exact, first-order and some high-order solutions in the literature. Numerical results show that the present model not only has high accuracy but also has superior computational efficiency in comparison with high-order models, such that it may show a great potential in engineering applications. © 2022 Polish Society of Theoretical and Allied Mechanics. All rights reserved.

引用

页码：435 / 448

页数：13

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