Abstract
This paper presents the results of a study of the propagation of ultrasonic waves incident normally on a five-region model consisting of water/ aluminium/adhesive/aluminium/water layers. The ultrasonic signal power reflected from various interfaces in the multi-layered structure was calculated using the energy partition principle; the ultrasonic attenuation in the various media was taken into account in the study. The phase relationship between the incident and reflected portions of each ultrasonic pulse was followed in detailed calculation. Results of the analysis show excellent correlation with experimental results obtained by pulsing ultrasound at a three-layered structure immersed in water.
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