TY - JOUR
TI - Detection and identification of delamination defects in CFRP laminates using non-linear frequency-modulated infrared thermal wave testing technology
AU - Tang Qing-Ju
AU - Feng Cui-Zhu
AU - Wang Zhi-Bo
AU - Li Hao-Dong
JN - Thermal Science
PY - 2024
VL - 28
IS - 2
SP - 1127
EP - 1133
PT - Article
AB - In the process of preparation and service, the carbon fiber reinforced polymer (CFRP) material is prone to defects such as delamination and inclusions, which seriously impact the normal use. In this paper, non-linear frequency-modulated (the logarithmic sweep) thermal excitation is used to carry out finite element simulation and experimental research. In order to investigate how different detection process parameters affect defects, the impact of different detection parameters on the surface temperature difference and contrast is analyzed, and the detection parameters that can quickly identify defects and have better recognition effect are obtained.