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http://dx.doi.org/10.3795/KSME-A.2017.41.8.729

Investigation of Detectable Crack Length in a Bolt Hole Using Eddy Current Inspection  

Lee, Dooyoul (Aero Technology Research Institute, Republic of Korea Air Force)
Yang, Seongun (Aero Technology Research Institute, Republic of Korea Air Force)
Park, Jongun (Aero Technology Research Institute, Republic of Korea Air Force)
Baek, Seil (Aero Technology Research Institute, Republic of Korea Air Force)
Kim, Soonkil (Aero Technology Research Institute, Republic of Korea Air Force)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.41, no.8, 2017 , pp. 729-736 More about this Journal
Abstract
In this study, the physics-based model and machine learning technique were used to conduct model-assisted probability of detection (MAPOD) experiments. The possibility of using in-service cracked parts was also investigated. Bolt hole shaped specimens with fatigue crack on the hole surface were inspected using eddy current inspection. Owing to MAPOD, the number of experimental factors decreased significantly. The uncertainty in the crack length measurement for in-service cracked parts was considered by the application of Monte Carlo simulation.
Keywords
Eddy Current Inspection; Probability of Detection;
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