"Quantitative Detectability and Adjacent-Defect Resolution in Directional Eddy-Current Inspection of Rail Defects"

Abstract

"This dataset contains Differential Eddy Current Testing (DECT) and scanning induction thermography measurements acquired from benchmark and ex-service rail specimens containing rolling-contact fatigue defects. The benchmark dataset includes electro-discharge-machined specimens designed to investigate the effects of crack depth, crack length, through-thickness inclination, and adjacent-defect spacing on inspection performance. Additional datasets from seven ex-service rail specimens contain naturally occurring defects, including gauge corner cracking and multiple local damage features. The data support studies of defect detection, characterization, signal processing, feature extraction, and automated condition assessment. All datasets are provided in MATLAB (.mat) format and include repeated measurements acquired under controlled experimental conditions to facilitate algorithm development, validation, and benchmarking of nondestructive evaluation methods for railway infrastructure inspection."

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