| Download | - View final version: Crack growth monitoring with structure-bonded thin and flexible coils (PDF, 4.9 MiB)
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| DOI | Resolve DOI: https://doi.org/10.3390/s22249958 |
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| Author | Search for: Mandache, Catalin1ORCID identifier: https://orcid.org/0000-0001-7106-1984; Search for: Desnoyers, Richard1; Search for: Bombardier, Yan1 |
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| Affiliation | - National Research Council Canada. Aerospace
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| Format | Text, Article |
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| Subject | eddy current; printed circuit board coil; structural health monitoring |
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| Abstract | Structural health monitoring with thin and flexible eddy-current coils is proposed for in situ detection and monitoring of fatigue cracks in metallic aircraft structures, providing a promising means of crack sizing. This approach is seen as an efficient replacement to periodic inspections, as it brings economic and safety benefits. As such, printed-circuit-board eddy-current coils are viable for in situ crack monitoring for multi-layer, electrically conductive structures. They are minimally invasive and could be attached to or embedded into the evaluated structure. This work focuses on the monitoring of fatigue crack growth from a fastener hole with structure-bonded, thin, and flexible spiral coils. Numerical simulations were used for optimization of the driving frequency and selection of crack-sensitive coil parameters. The article also demonstrates the fatigue crack detection capabilities using spiral coils attached to a 7075-T6 aluminum coupon. |
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| Publication date | 2022-12-17 |
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| Publisher | MDPI |
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| Licence | |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 40aa1abd-e39d-4488-b248-0a4cd6b9de8e |
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| Record created | 2023-11-01 |
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| Record modified | 2023-11-01 |
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