Vibration behavior of a micro cylindrical sandwich panel reinforced by graphene platelet

Abstract

In this article, vibration behavior of a micro cylindrical sandwich panel with foam core and reinforced graphene platelet composite layers on the top and bottom resting on elastic foundation based on modified couple stress theory is investigated. Hamilton’s principle is used to determine the governing equations of motion. These equations are solved by Navier’s method to obtain the natural frequencies. The results are compared with the extracted results by the other literatures. The effects of different parameters such as temperature change, volume fraction of graphene platelet, length to radius ratio, and the elastic foundation on the natural frequencies have been carried out. Also, the effects of reinforced materials for layers is discussed and compared with unreinforced composites layers. Sandwich structures are wildly used in different applications such as spacecraft, aeronautical, pressurized gas tanks, boilers, aircraft fuselage, marines, and civil structures, and these cases need high strength and low weight. The present work is a theoretical background for more explorations and further experimental researchers in the field of cylindrical reinforced panels.

Free vibration analysis of cylindrical sandwich panel with electro-rheological core and FG-GPLRC facing sheets based on First order shear deformation theory referred by Qatu

“…Based on classical plate theory for face layer, Exact solution for SSSS and SSCC sandwich cylindrically curved panel with ER core and CNTRC facing sheets rested on Winkler Pasternak foundation was performed by Ghorbanpour Arani and Jamali (2020). Within the framework of modified couple stress theory, vibration characteristics of a micro cylindrical sandwich panel with foam core and graphene platelets reinforced composite (GPLRC) resting on elastic foundation is studied by Anvari et al (2020). Vibration of GPLLRC cylindrical shell within the framework of FSDT was discussed by Arefi et al (2021).…”

Free vibration analysis of rotating thin-walled cylindrical shells with hard coating based on Rayleigh-Ritz method

“…Zhang 32 conducted the vibration analysis of a rotating laminated composite cylindrical shell based on the wave propagation approach. Anvari et al 33 analyzed the vibration behavior of a micro cylindrical sandwich panel with foam core and reinforced graphene platelet composite layers by the use of modified couple stress theory, and the effects of temperature change, the volume fraction of graphene platelet and other parameters on the natural frequencies were investigated. The study on free vibration of rotating laminated cylindrical shells was conducted by Civalek 34 using discrete singular convolution.…”

Geometrically nonlinear dynamic analysis of functionally graded porous partially fluid-filled cylindrical shells subjected to exponential loads

“…In spite of significant investigations on the dynamic response of the FGP structures, a few studies have been conducted concerning the dynamic characteristics of FGP-GPLs (Anvari et al, 2020;Barati and Shahverdi, 2017;Dong et al, 2018aDong et al, , 2018bDong et al, , 2018cDong et al, , 2019Dong et al, , 2020aDong et al, , 2020bGhasemi and Meskini, 2019;Mirjavadi et al, 2017;Mohseni and Shakouri, 2020;Rahimi et al, 2020).…”