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Infrared Thermographic Monitoring for Failure Characterization in Railway Axle Materials  

Kim, Jeong-Guk (Korea Railroad Research Institute, Vehicle Dynamics Research Department)
Publication Information
Journal of the Korean Society for Nondestructive Testing / v.30, no.2, 2010 , pp. 116-120 More about this Journal
Abstract
The wheelset, an assembly of wheel and axle, is one of important parts in railway bogie, directly related with the running safety of railway rolling stock. In this investigation, the tensile failure behavior of railway axle materials was investigated. The tensile coupons were prepared from the actual rolling stock parts, which were operated over 20 years. The tensile testing was performed according to the KS guideline. During tensile testing, an infrared camera was employed to monitor temperature changes in specimen as well as demonstrate temperature contour in terms of infrared thermographic images. The thermographic images of tensile specimens showed comparable results with mechanical behavior of tensile materials. In this paper, the failure mode and behavior of railway axle materials were provided with the aid of infrared thermography technique.
Keywords
Railway Axle Materials; Tensile Testing; Infrared Thermography; Temperature Monitoring; Failure Analysis;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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