Free vibration and buckling analyses of magneto-electro-elastic FGM nanoplates based on nonlocal modified higher-order sinusoidal shear deformation theory
Krzysztof Kamil Żur , Mohammad Arefi , Jinseok Kim , J. Reddy
AbstractIn this study, the free vibration and buckling responses of functionally graded nanoplates with magneto-electroelastic coupling are studied for the first time using a nonlocal modified sinusoidal shear deformation plate theory including the thickness stretching effect. The constitutive relations for these kind of structures are defined. The equations of motion for rectangular sandwich plates in macro and nano scale are derived using a modified dynamic version of Hamilton’s principle including a contribution of the electric and magnetic fields. The closedform analytical solution to simply supported plates is obtained using Navier solution technique. A power-law distribution and a half cosine variation are used to model the variation of materials properties and electric/ magnetic potentials, respectively. The analytical solutions are verified with well-known solutions in the literature. A parametric study was conducted to show the effect of nonlocal parameter, power-law index, predefined electric and magnetic fields, axial compressive and tensile forces, the aspect ratio of plates, and volume ratio of functionally graded and piezomagnetic layers on mechanical behaviors of nanoplates. Obtained numerical results can be used as benchmark values for validation of correctness of diverse analytical and numerical methods applied for design and analysis of composite nanoelectromechanical systems.
|Journal series||Composites Part B-Engineering, [Composites Part B: Engineering], ISSN 1359-8368, e-ISSN 1879-1069, (N/A 200 pkt)|
|Publication size in sheets||0.8|
|Keywords in English||piezoelectric material, free vibration, critical buckling load, nanoplate, magneto-electro-elastic coupling|
|ASJC Classification||; ; ;|
|Internal identifier||ROC 19-20|
|Score||= 200.0, 12-02-2020, ArticleFromJournal|
|Publication indicators||: 2018 = 2.466; : 2018 = 6.864 (2) - 2018=6.313 (5)|
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