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Title: Surface waves in functionally gradient piezoelectric plates
Authors: Liu, G.R. 
Tani, J.
Issue Date: Oct-1994
Citation: Liu, G.R.,Tani, J. (1994-10). Surface waves in functionally gradient piezoelectric plates. Journal of Vibration and Acoustics, Transactions of the ASME 116 (4) : 440-448. ScholarBank@NUS Repository.
Abstract: The hybrid numerical method, which has been proposed by the present authors for wave propagation analysis in anisotropic laminated plates, is extended for functionally gradient piezoelectric material (FGPM) plates. The properties of the plate changes continuously in the thickness direction. Characteristics of waves in the plates, and responses of the plates in the time and frequency domain are considered. A technique for calculating responses in the frequency domain is presented. Energy velocities, mode shapes of the waves in an FGPM plate, and the responses of the plate excited by mechanical loads and electrodes are computed. It is found that waves of lower modes in the FGPM plates for large wave numbers appear as surface waves and that a strong surface wave is excited on the softer surface of the FGPM plate. These surface waves can be expected to be used in surface acoustic wave devices.
Source Title: Journal of Vibration and Acoustics, Transactions of the ASME
ISSN: 10489002
Appears in Collections:Staff Publications

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