Abstract
Most of the aircraft skin is assembled by riveted structural parts, and the riveted holes are prone to cracks due to stress concentration, so it is urgent to carry out non-destructive testing research on aircraft riveted components. In this paper, a planar remote-field eddy current focusing detection probe was designed to study the hidden defects around the holes of aircraft riveted components, and a 3D simulation model was established for the detection of hidden defects in aircraft riveted components. The structural parameters of the focused remote-field eddy current probe were optimized by combining simulation and experiment, and the planar remote-field eddy current focusing detection test was carried out. The simulation and results showed that: When the inclination angle of the excitation coil is 10° and the coil spacing is 0 mm, the optimized focused remote-field eddy current probe can effectively detect the defect in length × width × depth of 10 mm × 0.2 mm × 1 mm under the buried depth of 9 mm. When the buried depth of the defect is 6–9 mm, the focused remote-field eddy current probe has a better detection capability than the non-focused remote-field eddy current probe.
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The datasets generated or analyzed during this study are available from the corresponding author on reasonable request.
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Acknowledgements
We wish to thank the timely help given by Ximing Cui in analyzing the large number of samples. Funding that provided financial support for this article is gratefully acknowledged.
Funding
This research was funded by the XX Special Scientific Research Program (Aircraft Strength Research Institute of China) from the Ministry of Industry and Information Technology of China and the National Natural Science Foundation of China (Project No.: 51865033) and the Doctoral Scientific Research Foundation (Project No.: EA202208183) and the Key Laboratory Foundation of Non-Destructive Testing Technology of Ministry of Education (Project No.: EW202208366).
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RW conceptualization, methodology. BB software, investigation. WW data curation. MZ visualization. LL writing—original draft, writing—review and editing. KS supervision, project administration. All authors reviewed the manuscript.
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Wang, R., Bao, B., Wang, W. et al. Research on Remote-Field Eddy Current Focusing Method for Detecting Hidden Defects in Aircraft Riveted Components. J Nondestruct Eval 42, 95 (2023). https://doi.org/10.1007/s10921-023-01011-2
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DOI: https://doi.org/10.1007/s10921-023-01011-2