Guided Ultrasonic Waves in Glass Laminate Aluminium Reinforced Epoxy

Knowledge on the structural health of hybrid composites that consist of laminated layers of thin metal sheets and fibre reinforced adhesive films are of increasing importance due to growing use in aircraft industry. For this purpose, we propose damage detection techniques based on the propagation behaviour of guided ultrasonic waves. Therefore, it is crucial to know the characteristic effect of fibre metal laminates on the wave propagation. Accompanying, in this study, we investigate experimentally and numerically how guided ultrasonic waves propagate in a fibre metal laminate.