Izvorni znanstveni članak

https://doi.org/10.37798/202170210

NDT OF COMPOSITES BASED ON ACTIVE INFRARED THERMOGRAPHY AND ULTRASOUND TESTING

Lovre Krstulović-Opara orcid.org/0000-0002-0823-9783 ; Faculty of Elec. Eng., Mech. Eng. and Naval Arch., University of Split
Petra Bagavac orcid.org/0000-0003-2027-3180 ; Faculty of Elec. Eng., Mech. Eng. and Naval Arch., University of Split
Antun Božanić ; Faculty of Elec. Eng., Mech. Eng. and Naval Arch., University of Split
Željko Domazet ; Faculty of Elec. Eng., Mech. Eng. and Naval Arch., University of Split

Sažetak

Composite materials, such as glass and carbon reinforced ones, are characterized by inhomogeneous structure that requires non destructive testing based on uncommon evaluation methods. The presented approach is based on the active infrared thermography, supported by the A-scan ultrasound testing. The heat wave propagation induced by halogen or xenon bulbs, due to the differences in thermal conductivity, reveals material structure and anomalies. In our previous work we have developed several signal processing and depth evaluation methods, but the real engineering approach requires additional approval testing methods such as the A-scan ultrasound is. The A-scan ultrasound, based on the low frequency probe, enables approval of anomalies located by infrared thermography. The active infrared thermography, as a full field method, enables evaluation of the whole scanned area. The A-scan, as a point-wise method, does not provide the image of whole area of interest. By combining these two methods, robust and reliable approach to analysis of composite structure is enabled.

Ključne riječi

non destructive testing, ultrasound testing, infrared thermography

Hrčak ID:

278061

URI

https://hrcak.srce.hr/278061

Datum izdavanja:

30.6.2021.

Posjeta: 333 *