Abstract
There is no literature on the dynamic property of functionally graded carbon nanotube-reinforced composite (FG-CNTRC) plates with a viscoelastic core. So this paper exhibits an application of the first-order discrete layer model combined with the Navier solution to the dynamic property analysis of FG-CNTRC sandwich plates. Five stacking sequences of FG-CNTRC sandwich plates are taken into account. The extended mixture rule method is adopted to evaluate the effective properties of the FG-CNTRC. Kinematic relations of the FG-CNTRC sandwich plates are developed based on first-order plate theory. Then the dynamic equations are deduced according to the Hamilton approach and are simplified using displacement continuity conditions at the interfaces. After validating the efficiency and accuracy, detailed parametric studies are carried out to reveal the change rule of vibration frequencies and loss factors of five kinds of FG-CNTRC sandwich plates for obtaining a better dynamic property. The numerical results can provide a reference for engineers to design large stiffness and high damping composite structures.
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