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Title: Portable automated radio-frequency scanner for non-destructive testing of carbon-fibre-reinforced polymer composites
Authors: Salski, B
Gwarek, W
Kopyt, P
Theodorakeas, P
Hatziioannidis, I
Koui, M
Chong, AYB
Tan, SM
Kappatos, V
Selcuk, C
Gan, TH
Keywords: CFRP;Scanner;Inductive sensors
Issue Date: 2016
Publisher: Springer
Citation: Journal of Nondestructive Evaluation, 35: 25, (2016)
Abstract: A portable automated scanner for non-destructive testing of carbon-fibre-reinforced polymer (CFRP) composites has been developed. Measurement head has been equipped with an array of newly developed radio-frequency (RF) inductive sensors mounted on a flexible arm, which allows the measurement of curved CFRP samples. The scanner is also equipped with vacuum sucks providing mechanical stability. RF sensors operate in a frequency range spanning from 10 up to 300 MHz, where the largest sensitivity to defects buried below the front CFRP surface is expected. Unlike to ultrasonic testing, which will be used for reference, the proposed technique does not require additional couplants. Moreover, negligible cost and high repeatability of inductive sensors allows developing large scanning arrays, thus, substantially speeding up the measurements of large surfaces. The objective will be to present the results of an extensive measurement campaign undertaken for both planar and curved large CFRP samples, pointing out major achievements and potential challenges that still have to be addressed.
ISSN: 0195-9298
Appears in Collections:Dept of Mechanical Aerospace and Civil Engineering Research Papers

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