Journal
OPTIK
Volume 226, Issue -, Pages -Publisher
ELSEVIER GMBH
DOI: 10.1016/j.ijleo.2020.165893
Keywords
Laminated plates; Delamination; Nondestructive testing; Laser ultrasonic
Categories
Funding
- National Natural Science Foundation of China [51575040]
- Natural Science Foundation of Beijing Municipality [3182008]
- Fundamental Research Funds for the Central Universities Project [FRF-TP-19-039A2Z]
Ask authors/readers for more resources
This study proposed a non-contact detection method based on laser ultrasonic waves for internal delamination defects in stainless steel/carbon steel laminated strip. The experimental signals were in good agreement with simulation waveforms, indicating the effectiveness of laser ultrasonic method in detecting delamination based on waveform amplitude.
This paper proposed the non-contact non-destructive detection of internal delamination defects in stainless steel/carbon steel laminated strip with laser ultrasonic detection method. The finite element model of stainless steel/carbon steel laminated plates was built to analyze the propagation of laser ultrasound in stainless steel/carbon steel laminated plates. The influences of delamination defects on laser ultrasonic wave field distribution and delamination size on the amplitude of laser ultrasound waves were analyzed to investigate the interaction between laser ultrasound and delamination defects. The out-of-plane displacements which were very sensitive to the delamination defects of laser ultrasonic waves were used to characterize delamination defects. The experimental signals were in good agreement with simulation waveforms. The laser ultrasonic method based on waveform amplitude is effective for non-contact detection of delamination in stainless steel/carbon steel laminated strip, which can provide data support for the optimization of rolling process.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available