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Repozytorium publikacji
Politechniki Gdańskiej

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Imaging of Increasing Damage in Steel Plates Using Lamb Waves and Ultrasound Computed Tomography

This paper concerns inspection of steel plates, with particular emphasis on the assessment of in-creasing damage. Non-destructive tests were performed on four plates, one of which was un-damaged, while the remaining three had a defects in the form of circular holes with a diameter of 2, 5, and 10 cm. Guided Lamb waves were used in the research, and the image reconstruction was performed using ultrasound computed tomography. The damage size was estimated by tracking the real course of rays and densifying the pixel grid into which the object was divided. The re-sults showed the great potential of ultrasound tomography in detecting defects in steel elements, together with the possibility of estimating damage size.

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