Thermomechanical vibration and buckling response of magneto-electro-elastic higher order laminated nanoplates.

• The temperature-dependent material properties of BaTiO 3 and CoFe 2 O 4 were defined in the model for the first time. • Sinusoidal higher-order shear and nonlocal strain gradient theories are employed to model the dynamic behavior. • The free vibration and buckling behavior of a magneto-electro-elastic (MEE) laminated nanoplate were investigated. • The effects of nonlinear thermal field, electric and magnetic potentials are presented. • The faceplate composition and electric/magnetic potentials are helpful to keep the MEE nanoplate in adjusted response. This study investigated the free vibration and buckling behavior of a magneto-electro-elastic (MEE) sandwich porous nanoplate under nonlinear thermal loads and electric and magnetic potentials. The equation of motion of the nanoplate consisting of barium-titanate and cobalt-ferrite components, with a functionally graded (FG) porous core and two face plates, was modeled by a sinusoidal higher-order shear (SHSDT) and the nonlocal strain gradient (NSGT) theories. Due to the significant effect of the temperature in the dynamics of the magneto-electro-elastic nanoplate, the temperature-dependent material properties of barium-titanate (BaTiO 3) and cobalt ferrite (CoFe 2 O 4) were defined and applied to the modeling for the first time in the literature. The laminated plate consists of upper and lower surface auxiliary plates and a main FG core plate. The core plate consists of functionally grading cobalt-ferrite and barium-titanate, while face plates can be in three different material compositions consisting of pure cobalt-ferrite, pure barium-titanate, or a combination of the two. It has been shown in this study that the dynamic behavior of the core plate, exposed to high temperatures, can be controlled through auxiliary surface plates. Especially in nanosensor applications, the disadvantage of thermal load can be reduced by the electric and magnetic field's strength applied to the surface plates. This study will make an essential contribution to the design and application of nanosensor or nanoelectromechanical systems, especially by controlling nanosensor responses in high-temperature applications. [ABSTRACT FROM AUTHOR]