For the propagation of horizontally shear waves (SH-waves) in a functionally gradient
piezoelectric material (FGPM) plate, the governing equations are established by the theory of
elasticity. The Airy equations and Airy functions are applied to find the solutions of the equations.
Numerical results indicate that: compared with those of SH-waves in a transversely isotropic
piezoelectric plate, remarkable difference can be observed for the dispersion properties of SH-waves
in a FGPM plate. Material coefficients gradient variation patterns do not affect higher modes
dispersion properties of SH-waves in a FGPM plate for electrically open case. While for electrically
shorted case, dispersion properties of SH-waves higher modes are affected by the material
coefficients gradient variation patterns, remarkable influences can be observed for S0 mode.
Influences of materials coefficients gradient variation patterns on cutoff-frequencies of SH-waves are
also revealed. The results obtained are meaningful for the investigation and characterization of
SH-waves in inhomogeneous media.
Following publication of the original article [1]. the authors flagged an error in the affiliations information of their article: affiliation '5' , which is only applicable for the fourth author, Yin Chen, had been assigned to all authors.The article has now been corrected and the corrected affiliation information may be seen in this erratum. The authors thank you for reading and apologize for any inconvenience caused.
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