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http://dx.doi.org/10.3795/KSME-A.2011.35.10.1257

Analysis of Dispersion Characteristics of Guided Waves in Rails  

Kang, Bu-Byoung (Dept. of Fire and Disaster Protection Engineering, Woosong Univ.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.35, no.10, 2011 , pp. 1257-1264 More about this Journal
Abstract
Guided ultrasonic waves propagating over long distances within a short period provide a fast long-range inspection method. However, structures with arbitrary cross-sections, such as rails, have complicated dispersion characteristics that make analysis of the ultrasonic signal difficult. Therefore, an understanding of the characteristics of the propagating waves in rails is important for the creation of a reliable and practical inspection system using guided waves. In particular, it is necessary to investigate the dispersion characteristics of the guided waves. This paper introduces a method for the calculation of the dispersion curves of KS60 rails by adopting a SAFE method, and discusses the possibility of using guided waves as a technique for rail inspection.
Keywords
Guided Waves; SAFE(Semi-analytical Finite Element Method); Rail Inspection); Dispersion Charicteristics;
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