Abstract
Dispersion analysis of Lamb waves propagating in stratified plates containing a large number (\(>50\)) of layers with alternating contrast physical properties is done by applying Cauchy sextic formalism coupled with the exponential fundamental matrix method Kuznetsov (Acoust Phys 60:95, 2014); Kuznetsov (Z Angew Math Phys 70(89):1, 2019); Kuznetsov (Wave Motion 84:1–7, 2019). This approach is suitable for analyzing dispersion properties of Lamb waves at a broad frequency range. In case of the stratified plates, several interesting phenomena relating to dispersion curves of Lamb waves are observed, revealing substantial discrepancy comparing with the homogeneous plates.
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Author thanks the RFBR Grants 18-58-41001 and 19-01-00100 for partial financial support.
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Kuznetsov, S.V. Abnormal dispersion of Lamb waves in stratified media. Z. Angew. Math. Phys. 70, 175 (2019). https://doi.org/10.1007/s00033-019-1222-z
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DOI: https://doi.org/10.1007/s00033-019-1222-z