The fractional volume dependence of stopbands in piezoelectric periodical composite plates has been studied experimentally by exciting the band‐edge resonances. The frequency and symmetry of such modes below the thickness resonance of the plate are successfully interpreted in terms of a theoretical model which provides approximate dispersion curves of the lowest Lamb waves propagating in the composite plate.
Stopband edges in the dispersion curves of Lamb waves propagating in piezoelectric periodical structures / A., Alippi; F., Craciun; Molinari, Elisa. - In: APPLIED PHYSICS LETTERS. - ISSN 0003-6951. - STAMPA. - 53:(1988), pp. 1806-1808. [10.1063/1.99787]
Stopband edges in the dispersion curves of Lamb waves propagating in piezoelectric periodical structures
MOLINARI, Elisa
1988
Abstract
The fractional volume dependence of stopbands in piezoelectric periodical composite plates has been studied experimentally by exciting the band‐edge resonances. The frequency and symmetry of such modes below the thickness resonance of the plate are successfully interpreted in terms of a theoretical model which provides approximate dispersion curves of the lowest Lamb waves propagating in the composite plate.
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