Investigation of the Lamb Waves Generation in Isotropic Plates Using Ultrasonic Broadband Transducers
Keywords:Ultrasonic measurement, Lamb waves, dispersion curves, wave structure
AbstractIn the case of non-destructive testing or structural health monitoring of plate-like structures measurements are often performed using broadband ultrasonic transducers for generation and reception of guided waves. In some cases, the measurements could be performed having access just from one side of the object and it affects the excitation efficiency of generated asymmetric and symmetric guided waves modes. The experimental investigation was performed in order to evaluate how the change of the thickness of the object under investigation will influence the efficiency of generated guided waves asymmetric and symmetric modes.
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