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In this theoretical study, we investigate the propagation of Love waves in a piezoelectric layered structure. The substrate of the layered structure is a functionally graded material (FGM) in which parameters vary along thickness and in the bounded domain. Both variable substitution and power series technique, which are shown to have good convergence and high precision, are employed for the asymptotic...
To investigate the propagation behavior of Lamb waves in a thermal stress relaxation type functionally graded material (FGM) plate with material parameters that vary continuously along the thickness, the power series technique, which has been proved to have good convergence and high precision, is employed for theoretical derivations. The influence of the gradient coefficients of FGM on the dispersion...
This Letter presents a new technique for measuring the variation of the material properties along the thickness in a freestanding inhomogeneous thin film. The analytical results reveal a simple relation between the material properties and the set of cut-off frequencies of Lamb waves. The influence of the graded properties on the variation of cut-off frequencies in three different kinds of models,...
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