期刊
COMPOSITES PART B-ENGINEERING
卷 78, 期 -, 页码 377-383出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesb.2015.04.008
关键词
Nano-structures; Vibration; Analytical modeling; Structural and external damping
Based on nonlocal theory, this article discusses vibration of CDVGS(1) systems. The properties of each single layer graphene sheet (SLGS) are assumed to be orthotropic and viscoelastic. The two SLGSs are simply supported and coupled by an enclosing viscoelastic medium which is simulated as a Visco-Pasternak layer. This model is aimed at representing dynamic interactions in nanocomposite materials with dissipation effect. By considering the Kirchhoff plate theory and Kelvin-Voigt model, the governing equation is derived using Hamilton's principle. The equation is solved analytically to obtain the complex natural frequency. The parametric study is thoroughly performed, concentrating on the series effects of viscoelastic damping structure, aspect ratio, visco-Pasternak medium, and mode number. In this system, in-phase (IPV) and out-of-phase (OPV) vibrations are investigated. The numerical results of this article show a perfect correspondence with those of the previous researches. (C) 2015 Elsevier Ltd. All rights reserved.
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