Loading...
Loading...

Go to the content (press return)

A model for the ultrasonic detection of surface-breaking cracks by the scanning laser source technique

Author
Arias, I.; Achenbach, J.
Type of activity
Journal article
Journal
Wave motion
Date of publication
2004-01
Volume
39
Number
1
First page
61
Last page
75
DOI
https://doi.org/10.1016/j.wavemoti.2003.06.001 Open in new window
Repository
http://hdl.handle.net/2117/8558 Open in new window
Abstract
A model for the scanning laser source (SLS) technique is presented. The SLS is a novel laser-based inspection method for the ultrasonic detection of small surface-breaking cracks. The generated ultrasonic signal is monitored as a line-focused laser is scanned over the defect. Characteristic changes in the amplitude and the frequency content are observed. The modeling approach is based on the decomposition of the field generated by the laser in a cracked two-dimensional half-space, by virtue of l...
Citation
Arias, I.; Achenbach, J. A model for the ultrasonic detection of surface-breaking cracks by the scanning laser source technique. "Wave motion", Gener 2004, vol. 39, núm. 1, p. 61-75.
Keywords
Crack detection, Laser ultrasonics, Line-source, Modeling, NDE, Scanning laser source technique, Surface-breaking crack, Thermoelastic regime
Group of research
LACÀN - Numerical Methods for Applied Sciences and Engineering

Participants

Attachments