Vibration analysis of a tapered laminated thick composite plate with ply drop-offs

被引：0
作者：
P. Edwin Sudhagar
A. Ananda Babu
R. Vasudevan
P. Jeyaraj
机构：
[1] VIT University,School of Mechanical and Building Sciences
[2] National Institute of Technology Karnataka,Department of Mechanical Engineering
来源：
Archive of Applied Mechanics | 2015年 / 85卷
关键词：
Tapered laminated composite thick plate; Ply drop-off; Vibration; Transverse response; Finite element method;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
In this study, vibration characteristics of a tapered laminated thick composite plate have been investigated using finite element method by including the shear deformation and rotary inertia effects. The governing differential equations of motion of a tapered laminated thick composite plate are presented in the finite element formulation based on first-order shear deformation theory for three types of taper configurations. The effectiveness of the developed finite element formulation in identifying the various dynamic properties of a tapered laminated thick composite plate is demonstrated by comparing natural frequencies evaluated using the present FEM with those obtained from the experimental measurements and presented in the available literature. Various parametric studies are also performed to investigate the effect of taper configurations, aspect ratio, taper angle, angle ply orientation and boundary conditions on free and forced vibration responses of the structures. The comparison of the transverse free vibration mode shapes of the uniform and tapered composite plates under various boundary conditions is also presented. The forced vibration response of a composite plate is investigated to study the dynamic response of tapered composite plate under the harmonic force excitation in various tapered configurations. It is concluded that the dynamic properties of laminated thick composite plates could be tailored by dropping off the plies to yield various tapered composite plate.
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页码：969 / 990
页数：21
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