Dynamic Analysis of Carbon Nanotube-Reinforced Multilayer Composite Plates

Subject Areas : composite materials

Jamshid  Ebrahimi ¹ (Department of Mechanical Engineering, Malek Ashtar University of Technology, Tehran, Iran)
Jafar  Eskandari Jam ² (Department of Mechanical Engineering, Malek Ashtar University of Technology, Tehran, Iran)
Reza  Azarafza ³ (Department of Mechanical Engineering, Malek Ashtar University of Technology, Tehran, Iran)
Mohsen  Heydari Beni ⁴ (Department of Mechanical Engineering, Malek Ashtar University of Technology, Tehran, Iran)
Majid  Eskandari Shahraki ⁵ (Department of Aerospace Engineering, Ferdowsi University of Mashhad, Iran)

Received: 2020-07-22 Accepted : 2020-09-02 Published : 2021-03-01

Keywords: FSDT, Finite Element, Composite plates, vibrations, Carbon nanotubes,

Abstract :

The paper studied the analysis of vibrations of rectangular carbon nanotube-reinforced composite plates. To this end, a three-layer nanocomposite plate - two layers with the targeted distribution of carbon nanotubes as FG-X at the top and bottom and a layer without an amplifier in the middle of the plate - were analyzed. The governing equations for this problem are based on First-order Shear Deformation Theory (FSDT). The distribution of nanotubes on these plates is as targeted FG-X. The effect of various types of SWCNTs distributions in the direction of thickness on the vibrational behavior of nanocomposite plates was examined. The effective properties of nanocomposite materials Functionally Graded Carbon Nanotube-Reinforced Composite (FG-CNTRC) were estimated using the rule of mixtures. Detailed parametric studies were performed to determine the effects of the volume fraction of carbon nanotubes and the thickness-to-length ratio of the plate on the natural frequency responses and the shape of the plate mode. The equations obtained in this problem were coded in MATLAB software, the nanocomposite plate was modelled in ABAQUS software, and the comparison of the results obtained from the numerical solution with ABAQUS software showed relatively right consistency with the results obtained from the analytical solution.

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