Abstract
An exact approach is used to investigate the propagation of a Love-type wave in a low-velocity piezoelectric-viscoelastic material (PV) stratum bonded to a functionally graded transversely isotropic viscoelastic (FGTIV) material substrate. The dispersion relations are obtained for electrically open (EO) and electrically short (ES) conditions on the upper free surface of the considered structure by using Valeev’s method of infinite determinants. The expression of group velocity of a Love-type wave in a low-velocity layered structure is also obtained in compact form. The obtained closed-form dispersion relations of a Love-type wave are matched with the standard result of a Love-type wave when reduced to the isotropic case. In order to observe the concealed characteristics of a Love-type wave, a detailed study is carried out graphically, to forefront the effect of various influencing parameters, viz. piezoelectric coupling parameter and magnifying gradient (MG) parameters. The profound impact of mass loading on the upper free surface of the considered layered structure is also studied.
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Acknowledgements
Authors convey their sincere thanks to the Department of Science and Technology, Science and Engineering Research Board (DST-SERB), for their financial support to carry out this research work by sanction no. EMR/2016/003985/MS of the project entitled “Mathematical Study on Wave Propagation Aspects of Piezoelectric Composite Structures with Complexities.”
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Kumari, R., Singh, A.K. & Ray, A. Love-type wave in low-velocity piezoelectric-viscoelastic stratum with mass loading. Acta Mech 232, 1253–1271 (2021). https://doi.org/10.1007/s00707-020-02831-3
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DOI: https://doi.org/10.1007/s00707-020-02831-3