Free Vibration of Grid-Stiffened Composite Cylindrical Shell Reinforced with Carbon Nanotubes

被引：0
|
作者：
R. Azarafza
Al. Davar
M. S. Fayez
J. E. Jam
机构：
[1] Malek Ashtar University of Technology,Faculty of Materials and Manufacturing Technologies
来源：
Mechanics of Composite Materials | 2020年 / 56卷
关键词：
composite; nanotube; vibration; grid stiffening; cylindrical shell;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A linear free vibration analysis is presented for computing the natural frequencies of a grid-stiffened carbon-nanotube-reinforced composite cylindrical shell. The carbon nanotubes (CNTs) are supposed to be oriented unidirectionally across the shell thickness, and the elastic moduli of the CNT-reinforced polymer composite are calculated using a modified rule of mixtures. In order to obtain the equivalent stiffness parameters of the grid-stiffened cylindrical shell, the smeared stiffness method is employed. The stiffeners are assumed to support the transverse shear loads, bending moments, and axial loads. An analytical method based on the first-order shear deformation theory is used. To validate the results obtained, a 3-D finite-element model is employed using the ABAQUS CAE software.
引用
收藏
页码：505 / 522
页数：17
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