Title of article
Free Vibration of Lattice Cylindrical Composite Shell Reinforced with Carbon Nano-tubes
Author/Authors
-، - نويسنده Composite Materials and Technology Center, Malek-Ashtar University of Technology, Tehran, Iran Emami, J. , -، - نويسنده Composite Materials and Technology Center, Malek-Ashtar University of Technology, Tehran, Iran Eskandari Jam, J. , -، - نويسنده Composite Materials and Technology Center, Malek-Ashtar University of Technology, Tehran, Iran Zamani, M.R. , -، - نويسنده Composite Materials and Technology Center, Malek-Ashtar University of Technology, Tehran, Iran Davar, A.
Issue Information
دوفصلنامه با شماره پیاپی 0 سال 2015
Pages
12
From page
61
To page
72
Abstract
-
Abstract
The free vibration of the lattice cylindrical composite shell reinforced with Carbon Nano-tubes (CNTs) was studied in this study. The theoretical formulations are based on the First-order Shear Deformation Theory (FSDT) and then by enforcing the Galerkin method, natural frequencies are obtained. In order to estimate the material properties of the reinforced polymer with nano-tubes, the modified Halpin-Tsai equations were used and the results were checked with an experimental investigation. Also, the smeared method is employed to superimpose the stiffness contribution of the stiffeners with those of the shell in order to obtain the equivalent stiffness of the whole structure. The effect of the weight fraction of the CNTs and also the ribs angle on the natural frequency of the structure is investigated in two types of length to diameter ratios in the current study. Finally, the results which are obtained from the analytical solution are checked with the FEM method using ABAQUS CAE software, and a good agreement has been seen between the FEM and the analytical results.
Journal title
Mechanics of Advanced Composite Structures
Serial Year
2015
Journal title
Mechanics of Advanced Composite Structures
Record number
2386870
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