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Lookup NU author(s): Junzhen Zhu,
Professor Gui Yun TianORCiD
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© 2005-2012 IEEE.Locating and characterizing rolling contact fatigue (RCF) cracks in rails is gaining attention in the railway industry. Eddy current pulsed thermography (ECPT) can detect such cracks by combining the benefits of electromagnetic excitation and thermal diffusion. To date, most studies focus on investigating specific features based on artificial defects, and verification on real cracks is lacking. In this article, to establish the best means of characterizing cracks of different inclination angles, eight spatial and temporal ECPT features are evaluated on idealized and real RCF cracks. Results show that longer time slots and pulse durations make the relations clearer. For the evaluation of real RCF cracks, the area-based and the kurtosis-based features are the most suitable and robust measures for characterizing inclination angles.
Author(s): Zhu J, Withers PJ, Wu J, Liu F, Yi Q, Wang Z, Tian GY
Publication type: Article
Publication status: Published
Journal: IEEE Transactions on Industrial Informatics
Print publication date: 01/04/2021
Online publication date: 18/06/2020
Acceptance date: 02/04/2018
ISSN (print): 1551-3203
ISSN (electronic): 1941-0050
Publisher: IEEE Computer Society
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