Thermal vibration buckling of smart magneto electro elastic sandwich nano plates with biocompatible FGM core layer
Engin Yıldırım, Ismail Esen
Source abstract
Abstract In this study, the thermomechanical vibration behavior of sandwich nanoplates with smart piezo magnetic surface layer and metal‐ceramic FGM foam core layer was modeled and analyzed using higher‐order shear deformation and nonlocal strain gradient elasticity theories. The core layer of the sandwich nanoplate was modeled as functionally graded (FG) from metal and ceramic biocompatible materials Solid ZK60 and zirconia with two different foam types. The surface plates are composed of magneto‐elastic barium‐titanate (BaTiO 3 ) and magneto‐strictive cobalt‐ferrite (CoFe 2 O 4 ) materials. In the thermomechanical vibration behavior of the sandwich nanoplate, the surface layers forming the plate and the properties of the core layer in the FGM structure were investigated in detail. The electro‐elastic and magneto‐strictive effects of the barium‐titanate and cobalt‐ferrite ratios in the surface layer were investigated in detail. In addition, the effects of solid‐metal, solid‐ceramic, foam‐metal, foam‐ceramic, and metal‐ceramic FG solid and foam structures on the surface layer were analyzed and presented. From the results obtained, it was observed that the FGM structure and foam structure were effective in the thermomechanical vibration behavior of the sandwich nanoplate, especially the type of foam structure and the void ratio increased the thermal resistance of the sandwich nanoplate. It was evaluated that the results of this study would be useful in the development of advanced biocompatible sensors and transducers.
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