Harmonic imaging of a defect in a flat plate using a guided wave generated by a high-intensity aerial ultrasonic wave
Abstract
We propose the visualization of defects by means of guided waves generated simultaneously at multiple frequencies using the nonlinearity of a high-intensity ultrasonic wave. This report presents the use of the proposed method to visualize a slit in a thin metal plate. The results confirm that even though the multiple-frequency guided waves infiltrate the defect area in different directions, the defect can be visualized by imaging the wave propagation.
- Publication:
-
Japanese Journal of Applied Physics
- Pub Date:
- July 2019
- DOI:
- 10.7567/1347-4065/ab1a31
- Bibcode:
- 2019JaJAP..58GGB14O