Thick Sandwich Panel with Magnetorheological Core: Free Vi-brations Analysis utilizing a novel sinusoidal shear defor-mation theory

Keshavarzian, Mahdi; Kazemi, Mohammad Ali; Kolivand, Mostafa

doi:10.22075/macs.2026.40550.1984

Thick Sandwich Panel with Magnetorheological Core: Free Vi-brations Analysis utilizing a novel sinusoidal shear defor-mation theory

Articles in Press

Document Type : Research Article

Authors

Mahdi Keshavarzian ¹

Mohammad Ali Kazemi ²

Mostafa Kolivand ¹

¹ Department of mechanical engineering, Technical and Vocational university, Tehran, Iran

² Department of mechanical engineering, technical and vocational university, Tehran, Iran

10.22075/macs.2026.40550.1984

Abstract

For the analysis of a thick sandwich panel with a magneto rheological core, a new sinusoidal shear deformation theory was established in this study for the first time. When exposed to magnetic fields, magneto rheological materials exhibit changes in their rheological characteristics. Using the innovative sinusoidal shear deformation theory, we looked at how a sandwich panel with elastic faces sheets and a fluid- filled magneto rheological core controlled vibration. We examine the transverse shear and rotary inertia impacts of the cover sheets using the navel sinusoidal shear deformation theory. By applying Hamilton's principle the governing equation and boundary condition were u

obtained. The eigen value problems solution led to the derivation of the natural frequencies and loss factors. It was discovered how the geometric parameters, MR layer thickness and thickness ratio affected the panels vibration behavior. As the magnetic field strength and aspect ratio of the panels increased, the natural frequencies of the panel also did so. It fell as the ratio of core to panel thickness rose. The results of this study can be used to better understand how sandwich panels with laminated when subjected to free vibration.

Keywords

Free Vibration

Fourier Series

Sandwich Panels

Subjects