THz QCL-based active imaging applied to composite materials diagnostic

Destic,; Petitjean,; Mollier,; Barbiere,; Sirtori, Carlo

doi:10.1109/icimw.2009.5324690

Cited by 3 publications

(1 citation statement)

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“…THz waves have the special property of being able to penetrate a wide variety of non-conducting materials such as ceramics, glass, polymers, rubber, and composites. As an emerging NDT technique, THz-based NDT&E technology has demonstrated its effectiveness in the inspection of delamination in FRPCs (Destic et al, 2010), debonding in the adhesive layer of thermal protection material (Karpowicz et al, 2005), impact damages on composite laminates (Destic and Bouvet, 2016), etc. The THz system utilizes short THz waves to interact with defects/damage in composites.…”

Section: Terahertz Testingmentioning

confidence: 99%

Nondestructive testing and evaluation techniques of defects in fiber-reinforced polymer composites: A review

Chen

Jin²

2022

Front. Mater.

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Fiber-reinforced polymer composites have excellent mechanical properties and outstanding development potential and are cost-effective. They have increasingly been used in numerous advanced and engineering applications as materials for wind turbine blades, helicopter rotors, high-pressure pipelines, and medical equipment. Understanding and assessing structural failure promptly in the whole lifecycle of a composite is essential to mitigating safety concerns and reducing maintenance costs. Various nondestructive testing and evaluation (NDT&E) technologies based on different evaluation principles have been established to inspect defects under different conditions. This paper reviews the established types of NDT&E techniques: acoustic emission, ultrasonic testing, eddy current testing, infrared thermography, terahertz testing, digital image correlation, shearography, and X-ray computed tomography, which is divided into three categories based on the operation frequency and data processing means of the output signal that is directly under analysis. We listed four types of defects/damage that are currently of great interest, namely, voids and porosity, fiber waviness and wrinkling, delamination and debonding, as well as impact damage. To identify a suitable method for different defects/damage, we performed characterization and evaluation by using these NDT&E techniques for typical defects/damage. Then, the cost, inspection speed, benefits and limitations, etc. were compared and discussed. Finally, a brief overview of the development of the technologies and their applications in the field of composite fabrication was discussed.

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Section: Terahertz Testingmentioning

confidence: 99%