Volume 47 Issue 1
Jan.  2018
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Xia Jiabin, Sun Guangkai, Song Chao, Zhou Zhenggan. Non-contact laser ultrasonic testing of steel-plumbum bonding structure[J]. Infrared and Laser Engineering, 2018, 47(1): 117006-0117006(7). doi: 10.3788/IRLA201847.0117006
Citation: Xia Jiabin, Sun Guangkai, Song Chao, Zhou Zhenggan. Non-contact laser ultrasonic testing of steel-plumbum bonding structure[J]. Infrared and Laser Engineering, 2018, 47(1): 117006-0117006(7). doi: 10.3788/IRLA201847.0117006
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Non-contact laser ultrasonic testing of steel-plumbum bonding structure

doi: 10.3788/IRLA201847.0117006
  • 1.

    School of Instrument Science and Opto-electronics Engineering,Hefei University of Technology,Hefei 230009,China;

  • 2.

    Beijing Key Laboratory of Optoelectronic Measurement Technology,Beijing Information Science & Technology University,Beijing 100101,China;

  • 3.

    School of Electrical and Control Engineering,North University of China,Taiyuan 030051,China;

  • 4.

    School of Mechanical Engineering and Automation,Beijing University of Aeronautics and Astronautics,Beijing 100191,China

  • Received Date: 2017-06-12
  • Rev Recd Date: 2017-08-15
  • Publish Date: 2018-01-25
  • In order to solve the problem for the non-contact and high precision nondestructive testing of steel-plumbum bonding structures used for radiation inhibition in nuclear industry, the laser ultrasonic testing method was studied. The model of the steel-plumbum bonding structure was established. The propagation of laser ultrasonic and the wave reflection and attenuation induced by the debonding defect were analyzed. The narrowband laser ultrasonic signals were measured at the good bonding and debonding region, and the variation of the amplitude of the interface reflected signal induced by the debonding defect was observed. For the characterization of the debonding defects, the relation of the reflection coefficient with the wave frequency and measuring position was analyzed. The detection and imaging of the specimen with simulated debonding defects were realized by the laser ultrasonic C-scan method. The research results show that the imaging testing of debonding defects in the two-layer steel-plumbum bonding structure can be realized using the laser ultrasonic method, it has application prospect in the nuclear industry for the testing of radiation protection structures.
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Non-contact laser ultrasonic testing of steel-plumbum bonding structure

doi: 10.3788/IRLA201847.0117006
  • 1. School of Instrument Science and Opto-electronics Engineering,Hefei University of Technology,Hefei 230009,China;
  • 2. Beijing Key Laboratory of Optoelectronic Measurement Technology,Beijing Information Science & Technology University,Beijing 100101,China;
  • 3. School of Electrical and Control Engineering,North University of China,Taiyuan 030051,China;
  • 4. School of Mechanical Engineering and Automation,Beijing University of Aeronautics and Astronautics,Beijing 100191,China
  • Received Date: 2017-06-12
  • Rev Recd Date: 2017-08-15
  • Publish Date: 2018-01-25

Abstract: In order to solve the problem for the non-contact and high precision nondestructive testing of steel-plumbum bonding structures used for radiation inhibition in nuclear industry, the laser ultrasonic testing method was studied. The model of the steel-plumbum bonding structure was established. The propagation of laser ultrasonic and the wave reflection and attenuation induced by the debonding defect were analyzed. The narrowband laser ultrasonic signals were measured at the good bonding and debonding region, and the variation of the amplitude of the interface reflected signal induced by the debonding defect was observed. For the characterization of the debonding defects, the relation of the reflection coefficient with the wave frequency and measuring position was analyzed. The detection and imaging of the specimen with simulated debonding defects were realized by the laser ultrasonic C-scan method. The research results show that the imaging testing of debonding defects in the two-layer steel-plumbum bonding structure can be realized using the laser ultrasonic method, it has application prospect in the nuclear industry for the testing of radiation protection structures.

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