Non-Destructive Evaluation of In-Plane Waviness in Carbon Fiber Laminates Using Eddy Current Testing

Non-destructive detection of the in-plane waviness of carbon fiber-reinforced plastic (CFRP) laminates is of interest in a wide variety of industries, as wrinkles and other fiber alignment defects significantly impact the mechanical performance of the composites. This work demonstrates a method to d...

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Bibliographic Details
Published in:Applied sciences 2023-05, Vol.13 (10), p.6009
Main Authors: Newton, Matthew, Chowdhury, Tonoy, Gravagne, Ian, Jack, David
Format: Article
Language:English
Subjects:
carbon fiber composite
Carbon fiber reinforced plastics
Carbon fibers
Comparative analysis
Computed tomography
CT imaging
Eddy current testing
Eddy currents
Electroconvulsive therapy
Fiber orientation
in-plane wrinkle
Laminated materials
Laminates
Manufacturing
Mechanical properties
Medical imaging
Methods
non-destructive testing
Nondestructive testing
Parameter estimation
Ultrasonic testing
Waviness
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Summary:Non-destructive detection of the in-plane waviness of carbon fiber-reinforced plastic (CFRP) laminates is of interest in a wide variety of industries, as wrinkles and other fiber alignment defects significantly impact the mechanical performance of the composites. This work demonstrates a method to detect in-plane wrinkles on a 5-ply unidirectional CFRP laminate with a customized eddy current testing (ECT) system. The results show that the ECT system is effective in detecting and quantifying in-plane waviness, and the results are compared to conventional X-ray computed tomography (CT) and ultrasonic testing (UT) methods. Using the anisotropic conductive nature of the aligned CFRP lamina, the ECT system was able to clearly detect throughout the part changes in the local fiber orientation, wave tangent angle, and wrinkle width.
ISSN:2076-3417
2076-3417
DOI:10.3390/app13106009