Conference proceeding
Modeling high-frequency wave propagation in rail tracks for crack detection
Proceedings of SPIE, v 7292(1), pp 72921W-72921W-13
01 Mar 2009
Abstract
This paper gives insight to the ultrasonic wave propagation in arbitrary cross section waveguides such as a rail. Due to the geometrical complexity of the rail cross section, the analytical solution to the wave propagation in the rail is not feasible. A Semi Analytical Finite Element method is described as an alternative yet still robust approach to get the solution of the problem. The free-vibration solution (unforced) and the forced solution to a laser excitation, are shown for the case of an undamped rail up to a frequency of 500 kHz. The effects of different loading patterns are discussed, while experimental results are provided. A mode selection is performed, in accordance to the sensitivity of each mode to the different types of defect that can occur in a rail.
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3 citations in Scopus
Details
- Title
- Modeling high-frequency wave propagation in rail tracks for crack detection
- Creators
- Stefano Coccia - University of California San DiegoIvan Bartoli - University of California San DiegoFrancesco Lanza di Scalea - University of California San DiegoMahmood Fateh - Federal Railroad AdministrationGary Carr - Federal Railroad Administration
- Publication Details
- Proceedings of SPIE, v 7292(1), pp 72921W-72921W-13
- Conference
- Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2009 (2009)
- Publisher
- Society of Photo-Optical Instrumentation Engineers (SPIE)
- Resource Type
- Conference proceeding
- Language
- English
- Academic Unit
- Civil, Architectural, and Environmental Engineering
- Scopus ID
- 2-s2.0-77955680107
- Other Identifier
- 991020547453604721