Buy article PDF
The purchased file will be sent to you
via email after the payment is completed.
US$ 35
|
Structural Engineering and Mechanics Volume 45, Number 2, January25 2013 , pages 259-275 DOI: https://doi.org/10.12989/sem.2013.45.2.259 |
|
|
|
Free vibration of symmetric angle-ply layered conical shell frusta of variable thickness under shear deformation theory |
||
K.K.Viswanathan, Saira Javed and Zainal Abdul Aziz
|
||
| Abstract | ||
| Free vibration of symmetric angle-ply layered conical shell frusta of variable thickness is analyzed under shear deformation theory with different boundary conditions by applying collocation with spline approximation. Linear and exponential variation in thickness of layers are assumed in axial direction. Displacements and rotational functions are approximated by Bickley-type splines of order three and obtained a generalized eigenvalue problem. This problem is solved numerically for an eigenfrequency parameter and an associated eigenvector of spline coefficients. The vibration of three and five–layered conical shells, made up of two different type of materials are considered. Parametric studies are made for analysing the frequencies of the shell with respect to the coefficients of thickness variations, length-to-radius ratio, length-to-thickness ratio and ply angles with different combination of the materials. The results are compared with the available data and new results are presented in terms of tables and graphs. | ||
| Key Words | ||
| free vibration; conical shells; shear deformation; spline; angle-ply1 | ||
| Address | ||
| K.K.Viswanathan, Saira Javed and Zainal Abdul Aziz: Department of Mathematical Sciences, Faculty of Science, Universiti Teknologi Malaysia, 81310 Skudai, Johor Bahru, Johor, Malaysia | ||