Natural frequency, damping and forced responses of sandwich plates with viscoelastic core and graphene nanoplatelets reinforced face sheets

Abstract

The free and forced vibration analysis of a sandwich plate with the viscoelastic core and face layers reinforced functionally with multilayered graphene nanoplatelets is presented. Different graphene nanoplatelet distributions are considered through the thickness, and the effective properties of the graphene reinforced nanocomposite are obtained by the rule of mixture. The equations of motion are extracted using Hamilton’s principle and assuming the classical thin plate theory for face layers and the first-order shear deformation theory for the thick viscoelastic core. Assuming the simply-supported boundary condition for all edges, the displacement components are proposed by Fourier series and the complex eigenvalue problem is solved to obtain the natural frequencies as well as the loss factors. The results are validated with available investigations, and effects of some important parameters on the free and forced responses of the sandwich plate are studied.

On the dynamics of FG-GPLRC sandwich cylinders based on an unconstrained higher-order theory

“…Applying the transformed differential quadrature method, Liang et al [59] demonstrated the vibration behavior study of shear deformable trapezoidal sandwich plate consists of a porous core with the outer FG-GPLRC surface sheets. Mohseni and Shakouri [60] investigated the free vibration of sandwich plates consist of the middle viscoelastic core embedded by GPL reinforced nanocomposites layers on its surfaces.…”

On the impact process and stress field of functionally graded graphene reinforced composite pipes with a viscoelastic interlayer

“…Graphene, owing to outstanding mechanical properties and superior designability, is considered to be an ideal reinforcement for the lightweight and high strength composites (Rahimi et al, 2020; Ghabussi et al, 2021; Mohseni and Shakouri 2020; Yu et al, 2018a). Experimental results indicate that the Young’s modulus, tensile strength, and toughness of graphene composites are higher than those of carbon nanotube composites (Gong et al, 2016).…”

Dynamic analysis of thick beams with functionally graded porous layers and viscoelastic support

“…Akbaş et al (2020) developed a comprehensive model to investigate the vibration response of FG porous thick beams under the dynamic sine pulse load including the damping effect. Mohseni and Shakouri (2020) studied free vibration, damping, and forced responses of sandwich plates with viscoelastic core and graphene nanoplatelet–reinforced face sheets.…”