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Numerical simulation of rail surface defect detection with laser-induced ultrasound
Author(s): Hao Sui; Xiaorong Gao; Hongna Zhu; Lin Luo; Jinli Zhang; Zhenyu Zhu; Jianping Peng
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Paper Abstract

The detection of rail surface defects is of great significance for railway safety. To detect the rail surface defect, the laserinduced ultrasonic rail propagation model is established by the finite element method. The intrinsic relationship between the defect depth, of the defect on rail surface and the acoustic surface wave is investigated by discussing the variation of the reflected wave and the transmitted wave both in the time and frequency domain, respectively. Quantitative evaluation of defect depth is given based on the energy of the reflected and transmitted wave, which providing a promising theoretical way for the estimation of the rail surface defect feature.

Paper Details

Date Published: 20 December 2019
PDF: 9 pages
Proc. SPIE 11209, Eleventh International Conference on Information Optics and Photonics (CIOP 2019), 112093J (20 December 2019); doi: 10.1117/12.2548897
Show Author Affiliations
Hao Sui, Southwest Jiaotong Univ. (China)
Xiaorong Gao, Southwest Jiaotong Univ. (China)
Hongna Zhu, Southwest Jiaotong Univ. (China)
Lin Luo, Southwest Jiaotong Univ. (China)
Jinli Zhang, National Key Lab. of Science and Technology on Blind Signal Processing (China)
Zhenyu Zhu, Southwest Jiaotong Univ. (China)
Jianping Peng, Southwest Jiaotong Univ. (China)


Published in SPIE Proceedings Vol. 11209:
Eleventh International Conference on Information Optics and Photonics (CIOP 2019)
Hannan Wang, Editor(s)

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