Lamb Wave Ultrasonic Detection of Barely Visible Impact Damages of CFRP
- Authors: Burkov M.V.1,2, Lyubutin P.S.1, Byakov A.V.1
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Affiliations:
- Institute of Strength Physics and Materials Science, Siberian Branch
- Tomsk Polytechnic University
- Issue: Vol 55, No 2 (2019)
- Pages: 89-101
- Section: Acoustic Methods
- URL: https://journals.rcsi.science/1061-8309/article/view/182025
- DOI: https://doi.org/10.1134/S1061830919020025
- ID: 182025
Cite item
Abstract
Results of applying a Lamb-wave-based ultrasonic technique to detect impact damages to a CFRP honeycomb panel are presented. The technique is based on analyzing changes in wave propagation due to defects and makes use of a network of piezoelectric transducers adhesively bonded to the panel surface. Preliminary experiments and tests have been carried out in which defect simulators (metal discs attached at various points of the CFRP panel) and low energy impact damages inflicted by drop-weight operation were detected. Results of defect location (calculated coordinates) are considered, as well as a damage index. A detailed analysis of the results has made it possible to identify the specific features and shortcomings of the technique. Possible ways are proposed for eliminating these shortcomings and upgrading the methodology of ultrasonic data processing in general.
About the authors
M. V. Burkov
Institute of Strength Physics and Materials Science, Siberian Branch; Tomsk Polytechnic University
Author for correspondence.
Email: burkovispms@mail.ru
Russian Federation, Tomsk, 634055; Tomsk, 634028
P. S. Lyubutin
Institute of Strength Physics and Materials Science, Siberian Branch
Author for correspondence.
Email: ps_box@mail.ru
Russian Federation, Tomsk, 634055
A. V. Byakov
Institute of Strength Physics and Materials Science, Siberian Branch
Author for correspondence.
Email: bjakov@ispms.tsc.ru
Russian Federation, Tomsk, 634055