Vinyas, MaheshSunny, K. K.Harursampath, D.Trung, Nguyen-ThoiLoja, Amélia2019-09-102019-09-102019-07-29VINYAS, M.; [et al] – Influence of interphase on the multi-physics coupled frequency of three-phase smart magneto-electro-elastic composite plates. Composite Structures. ISSN 0263-8223. Vol. 226 (2019), pp. 1-160263-8223http://hdl.handle.net/10400.21/10485The present article researches the influence of piezoelectric interphase thickness on the coupled frequency response of three-phase smart magneto-electro-elastic (TPS-MEE) plates with the aid of Reddy’s third-order shear deformation theory (RTSDT). A three-phase smart composite constituted of CoFe2O4 piezomagnetic matrix embedded with carbon fibers in the piezoelectric shell is considered for evaluation. The coupling characteristics of the smart carbon/PZT-5A (PZT-7A)/CoFe2O4 composites significantly changes with the interphase thickness of piezoelectric interphase. Thereby the stiffness and the natural frequency of the structure composed of these three-phase MEE materials drastically changes. A finite element (FE) formulation has been derived incorporating Hamilton’s principle. The equations of motion are obtained through condensation technique. The results reveal a significant effect of interphase thickness on the natural frequency of the three-phase smart magneto-electroelastic plate. Further, a special attention has been paid on evaluating the influence of carbon fiber/piezoelectric volume fraction on the free vibration behaviour of TPS-MEE plate. Also, a parametric study has been performed to investigate the effect of boundary conditions, aspect ratio and length-to-width ratio.engInterphaseCoupling frequencyThree-phase smart compositesMagneto-electro-elasticFinite elementjournal articlehttps://doi.org/10.1016/j.compstruct.2019.111254