Abstract
The motivation of this work is to investigate the simulation of a beam which is bounded both spatially and temporally and to look at the response of the plate either near or far from the specular reflection. Using the model it is demonstrated that the dispersion curves built up from a two dimensional Fourier transform correspond either to the leaky Lamb waves dispersion curves (with real frequency and complex slowness) or to the transient Lamb waves dispersion curves (with complex frequency and real slowness) according to the location of the receiver.
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