Wideband dispersion removal and mode separation of Lamb waves based on two-component laser interferometer measurement
(color online) Theoretical dispersion curves and wave structures for two fundamental modes of Lamb wave in an aluminum plate. (a) Phase velocity and (b) group velocity curves of S0 and A0 modes for an aluminum plate. (c) Wave structure of A0 for the frequency-thickness product of 2.0 MHz · mm. (d) Wave structure of S0 with the same frequency-thickness product.
