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This work proposes a novel hybrid signal processing technique to extract information on disbond-type defects from a single B-scan in the process of non-destructive testing NDT of glass fiber reinforced plastic GFRP material using ultrasonic guided waves GW. The selected GFRP sample has been a segment of wind turbine blade, which possessed an aerodynamic shape. Two disbond type defects having diameters of 15 mm and 25 mm were artificially constructed on its trailing edge. The experiment has been performed using the low-frequency ultrasonic system developed at the Ultrasound Institute of Kaunas University of Technology and only one side of the sample was accessed. A special configuration of the transmitting and receiving transducers fixed on a movable panel with a separation distance of 50 mm was proposed for recording the ultrasonic guided wave signals at each one-millimeter step along the scanning distance up to mm.
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TWI Certification Ltd. If you would like to find a training provider offering these courses in your area, please view our list of Approved Training Providers and contact them for further details. Non-Destructive Testing. Ultrasonic Inspector UT. Appendix 1 Part 1a, 6th Edition, February
End Point Assessment (EPA)
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