Laser Thermography: An Investigation of Test Parameters on Detection and Quantitative Assessment in a Finite Crack

first_pagesettingsOrder Article Reprints Open AccessProceeding Paper Laser Thermography: An Investigation of Test Parameters on Detection and Quantitative Assessment in a Finite Crack † by Giuseppe Danilo Addante,Giuseppe Dell’Avvocato *ORCID,Francesco Bisceglia,Ester D’Accardi,Davide PalumboORCID andUmberto Galietti Department of Mechanics, Mathematics and Management, Polytechnic University of Bari, 70125 Bari, Italy * Author to whom correspondence should be addressed. † Presented at the 17th International Workshop on Advanced Infrared Technology and Applications, Venice, Italy, 10–13 September 2023. Eng. Proc. 2023, 51(1), 7; https://doi.org/10.3390/engproc2023051007 Published: 25 October 2023 Downloadkeyboard_arrow_down Browse Figures Versions Notes Abstract This preliminary study investigates the influence of test parameters on the detection and quantitative assessment of cracks using laser thermography. Cracks pose significant material design and analysis concerns, compromising the structural strength and durability of structures. Traditional crack detection methods have limitations, motivating the exploration of laser thermography. A finite element model (FEM) was developed and validated using finite thickness and surface cracks. Experimental tests were conducted, and the relative position between the laser spot and crack was investigated. The results showed the potential influence of the laser spot size and position on the crack detectability. This research contributes to advancing crack detection using non-destructive laser thermography techniques.