每年出版 12 期
ISSN 打印: 0040-2508
ISSN 在线: 1943-6009
Indexed in
QUASI-OPTICAL SUB-TERAHERTZ INTERNAL REFLECTION REFLECTOMETER FOR NON-DESTRUCTIVE TESTING OF CARBON FIBER REINFORCED PLASTICS
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摘要
The widespread use of carbon composites in modern aircraft required to develop methods of non-destructive testing of the surface and determining the presence of moisture and heat damage, affecting the quality of adhesive bonds. Conventional reflection methods applicable in the terahertz band give very low contrast signals reflected from untreated and contaminated samples. This paper presents a method of the internal reflection reflectometry for oblique irradiation of the surface carbon fiber with quasioptical (QO) beam at different angles through the prism of internal reflection, which are located near the surface of the sample. For realization of the method a QO-measuring installation executed on the basis of the hollow dielectric beam waveguide and a complex of the beam waveguide devices and components of the THz range was developed. Research of samples of composite materials was conducted, it showed a considerable increase of a contrast at detection of a contamination. After technical completion the reflectometer can be used in practice.
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Dong Junliang, Locquet Alexandre, Citrin D. S., Enhanced Terahertz Imaging of Small Forced Delamination in Woven Glass Fibre-reinforced Composites with Wavelet De-noising, Journal of Infrared, Millimeter, and Terahertz Waves, 37, 3, 2016. Crossref
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Dong Junliang, Kim Byungchil, Locquet Alexandre, McKeon Peter, Declercq Nico, Citrin D.S., Nondestructive evaluation of forced delamination in glass fiber-reinforced composites by terahertz and ultrasonic waves, Composites Part B: Engineering, 79, 2015. Crossref
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Dong Junliang, Locquet Alexandre, Declercq Nico F., Citrin D.S., Polarization-resolved terahertz imaging of intra- and inter-laminar damages in hybrid fiber-reinforced composite laminate subject to low-velocity impact, Composites Part B: Engineering, 92, 2016. Crossref
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Vito Saverio De, Miglietta Maria Lucia, Massera Ettore, Fattoruso Grazia, Formisano Fabrizio, Polichetti Tiziana, Salvato Maria, Alfano Brigida, Esposito Elena, Francia Girolamo Di, Electronic Noses for Composites Surface Contamination Detection in Aerospace Industry, Sensors, 17, 4, 2017. Crossref
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Xu Yafei, Hao Huibo, Citrin D.S., Wang Xingyu, Zhang Liuyang, Chen Xuefeng, Three-dimensional nondestructive characterization of delamination in GFRP by terahertz time-of-flight tomography with sparse Bayesian learning-based spectrum-graph integration strategy, Composites Part B: Engineering, 225, 2021. Crossref
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Zhong Shuncong, Nsengiyumva Walter, Terahertz Testing Technique for Fiber-Reinforced Composite Materials, in Nondestructive Testing and Evaluation of Fiber-Reinforced Composite Structures, 2022. Crossref