@inproceedings{106afdabb3cc489cb7569ff663ae0b43,
title = "Scattered echoes from surface defect in the far field of Rayleigh wave generated by laser",
abstract = "In order to realize the quantitative detection of surface defects by the laser ultrasonic technique, the finite element method had been employed to simulate the interaction of the laser-generated surface wave to the open rectangular defect. Signals received at the same position were compared for the laser generation in the near-field and far-field of the defect. The mode-converted waves and reflected waves could be separated when the laser was located in the far field of the defect, and it is helpful for the analysis of the complicated interaction between the incident waves and the defect. Then, the wave interaction either to the front or the back of the defect was studied in details, and Huygens principle was further employed to interpret the possible interaction features among the reflected signals. Finally, influences of the depth and width of the defect on the scattered echoes were also studied. It is shown that the arrival time difference of the scattered echoes are linearly related to the depth and width of the defect.",
author = "Wei Wang and Zheng Zhong and Pan, \{Yong Dong\}",
note = "Publisher Copyright: {\textcopyright} 2015 AIP Publishing LLC.; 41st Annual Review of Progress in Quantitative Nondestructive Evaluation, QNDE 2014 ; Conference date: 20-07-2014 Through 25-07-2014",
year = "2015",
doi = "10.1063/1.4914744",
language = "英语",
series = "AIP Conference Proceedings",
publisher = "American Institute of Physics Inc.",
pages = "1307--1315",
editor = "Chimenti, \{Dale E.\} and Bond, \{Leonard J.\}",
booktitle = "41st Annual Review of Progress in Quantitative Nondestructive Evaluation, Volume 34",
}