Yin Li1, Yuanjia Song1, Zhengwei Yang2, Haijun Jiang3, Bowen Liu1,*
CMES-Computer Modeling in Engineering & Sciences, Vol.137, No.1, pp. 1001-1018, 2023, DOI:10.32604/cmes.2023.027072
Abstract The temperature field in laser line scanning thermography is investigated comprehensively in this work, including
analytical calculation and experiment. Firstly, the principle of laser line scanning thermography is analyzed. On
this basis, a physical laser line scanning model is proposed. Afterwards, based on Fourier transform (FT) and
segregation variable method (SVM), the heat conduction differential equation in laser line scanning thermography
is derived in detail. The temperature field of the composite-based coatings model with defects is simulated
numerically. The results show that the laser line scanning thermography can effectively detect the defects in the
model. The correctness of the analytical… More >
Graphic Abstract
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