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Steel and Composite Structures
  Volume 32, Number 5, September10 2019 , pages 687-699
DOI: https://doi.org/10.12989/scs.2019.32.5.687
 


Semi-analytical solutions of free and force vibration behaviors of GRC-FG cylindrical shells
Zuxiang Lei and Lihong Tong

 
Abstract
    In this paper, free and force vibration behaviors of graphene-reinforced composite functionally graded (GRC-FG) cylindrical shells in thermal environments are investigated based on Reddy's third-order shear deformation theory (HSDT). The GRC-FG cylindrical shells are composed of piece-wise pattern graphene-reinforced layers which have different volume fraction. Based on the extended Halpin-Tsai micromechanical model, the effective material properties of the resulting nanocomposites are evaluated. Using the Hamilton's principle and the assumed mode method, the motion equation of the GRC-FG cylindrical shells is formulated. Using the time- and frequency-domain methods, free and force vibration properties of the GRC-FG cylindrical shell are analyzed. Numerical cases are provided to study the effects of distribution of graphene, shell radius-to-thickness ratio and temperature changes on the free and force vibration responses of GRC-FG cylindrical shells.
 
Key Words
    vibration; graphene; HSDT; extended Halpin-Tsai model; analytical modeling
 
Address
Institute of Geotechnical Engineering, School of Civil Engineering and Architecture, East China Jiaotong University, Nanchang, 330013, Jiangxi, P.R. China
 

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