کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
295531 511554 2011 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Numerical and experimental study of guided waves for detection of defects in the rail head
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
پیش نمایش صفحه اول مقاله
Numerical and experimental study of guided waves for detection of defects in the rail head
چکیده انگلیسی

This paper gives insight to the ultrasonic wave propagation in arbitrary cross-section waveguides such as rails, with application to ultrasonic inspection. 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 and the forced solution to a laser excitation of the rail head are shown up to a frequency of 500 kHz. The effects of different loading patterns are discussed, and experimental results are provided. The analysis allows for the identification of certain wave modes potentially sensitive to specific types of rail head defects.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: NDT & E International - Volume 44, Issue 1, January 2011, Pages 93–100
نویسندگان
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