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Broadband local wavenumber estimation for damage detection and quantification in CFRP components

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Abstract
Local wavenumber estimation (LWE) is traditionally applied to a narrowband full wavefield response of the test specimen. The technique proves promising for damage detection in fiber-reinforced polymer (i.e. composite) structures. How-ever, the narrowband nature of the traditional LWE techniques bring several challenges for application on actual test cases. In this paper, the performance of a novel self-reference broadband version of the LWE technique is investigated. The technique is based on modepass filters in the wavenumber-frequency domain. Compared to the traditional narrowband LWE implementations, the proposed method allows a higher level of automation, removes the need for a priori knowledge on the material and/or defect properties, and results in an improved characterization of defects. The performance is evaluated for an aluminum plate with flat bottom hole defects and for a damaged cross-ply CFRP aircraft panel.
Keywords
Fiber-reinforced polymers, Composites, Non-destructive testing (NDT), Self-reference Broadband Local Wavenumber Estimation, Scanning laser Doppler vibrometry, Guided Waves, Depth quantification

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MLA
Segers, Joost, et al. “Broadband Local Wavenumber Estimation for Damage Detection and Quantification in CFRP Components.” Better CM & NDT : Warranty of Quality, Reliability and Safety (ENDT&CM 2021), Proceedings., 2021.
APA
Segers, J., Hedayatrasa, S., Poelman, G., Van Paepegem, W., & Kersemans, M. (2021). Broadband local wavenumber estimation for damage detection and quantification in CFRP components. Better CM & NDT : Warranty of Quality, Reliability and Safety (ENDT&CM 2021), Proceedings. Presented at the European NDT&CM2021, Prague, Czech Republic.
Chicago author-date
Segers, Joost, Saeid Hedayatrasa, Gaétan Poelman, Wim Van Paepegem, and Mathias Kersemans. 2021. “Broadband Local Wavenumber Estimation for Damage Detection and Quantification in CFRP Components.” In Better CM & NDT : Warranty of Quality, Reliability and Safety (ENDT&CM 2021), Proceedings.
Chicago author-date (all authors)
Segers, Joost, Saeid Hedayatrasa, Gaétan Poelman, Wim Van Paepegem, and Mathias Kersemans. 2021. “Broadband Local Wavenumber Estimation for Damage Detection and Quantification in CFRP Components.” In Better CM & NDT : Warranty of Quality, Reliability and Safety (ENDT&CM 2021), Proceedings.
Vancouver
1.
Segers J, Hedayatrasa S, Poelman G, Van Paepegem W, Kersemans M. Broadband local wavenumber estimation for damage detection and quantification in CFRP components. In: Better CM & NDT : warranty of quality, reliability and safety (ENDT&CM 2021), Proceedings. 2021.
IEEE
[1]
J. Segers, S. Hedayatrasa, G. Poelman, W. Van Paepegem, and M. Kersemans, “Broadband local wavenumber estimation for damage detection and quantification in CFRP components,” in Better CM & NDT : warranty of quality, reliability and safety (ENDT&CM 2021), Proceedings., Prague, Czech Republic, 2021.
@inproceedings{8739982,
  abstract     = {{Local wavenumber estimation (LWE) is traditionally applied to a narrowband full wavefield response of the test specimen. The technique proves promising for damage detection in fiber-reinforced polymer (i.e. composite) structures. How-ever, the narrowband nature of the traditional LWE techniques bring several challenges for application on actual test cases.
In this paper, the performance of a novel self-reference broadband version of the LWE technique is investigated. The technique is based on modepass filters in the wavenumber-frequency domain. Compared to the traditional narrowband LWE implementations, the proposed method allows a higher level of automation, removes the need for a priori knowledge on the material and/or defect properties, and results in an improved characterization of defects. The performance is evaluated for an aluminum plate with flat bottom hole defects and for a damaged cross-ply CFRP aircraft panel.}},
  author       = {{Segers, Joost and Hedayatrasa, Saeid and Poelman, Gaétan and Van Paepegem, Wim and Kersemans, Mathias}},
  booktitle    = {{Better CM & NDT : warranty of quality, reliability and safety (ENDT&CM 2021), Proceedings.}},
  keywords     = {{Fiber-reinforced polymers,Composites,Non-destructive testing (NDT),Self-reference Broadband Local Wavenumber Estimation,Scanning laser Doppler vibrometry,Guided Waves,Depth quantification}},
  language     = {{eng}},
  location     = {{Prague, Czech Republic}},
  pages        = {{10}},
  title        = {{Broadband local wavenumber estimation for damage detection and quantification in CFRP components}},
  url          = {{https://www.ndt.net/search/docs.php3?id=26492}},
  year         = {{2021}},
}