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Steel and Composite Structures
  Volume 34, Number 5, March10 2020 , pages 733-742
DOI: https://doi.org/10.12989/scs.2020.34.5.733
 


The effect of voltage and nanoparticles on the vibration of sandwich nanocomposite smart plates
Ahmad Farrokhian

 
Abstract
    Vibration analysis in nanocomposite plate with smart layer is studied in this article. The plate is reinforced by carbon nanotubes where the Mori-Tanaka law is utilized for obtaining the effective characteristic of structure assuming agglomeration effects. The nanocomposite plate is located in elastic medium which is simulated by spring element. The motion equations are derived based on first order shear deformation theory and Hamilton\' s s principle. Utilizing Navier method, the frequency of the structure is calculated and the effects of applied voltage, volume percent and agglomeration of Carbon nanotubes, elastic medium and geometrical parameters of structure are shown on the frequency of system. Results indicate that with applying negative voltage, the frequency of structure is increased. In addition, the agglomeration of carbon nanotubes reduces the frequency of the nanocomposite plate.
 
Key Words
     nanocomposite plate; vibration; smart layer; elastic medium; exact method
 
Address
Ahmad Farrokhian: Mechanical Engineering group, Pardis College, Isfahan University of Technology, Isfahan 84156-83111, Iran
 

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