Laser ultrasonic damage detection in coating-substrate structure via Pearson correlation coefficient

Chang, Ying; Yang, Dexing; Guo, Yuning

Laser ultrasonic damage detection in coating-substrate structure via Pearson correlation coefficient

Dateien

Zu diesem Dokument gibt es keine Dateien.

Datum

2018

Autor:innen

Chang, Ying

Yang, Dexing

Guo, Yuning

DOI (zitierfähiger Link)

https://doi.org/10.1016/j.surfcoat.2018.09.005

Sammlungen

Physik

Publikationstyp

Zeitschriftenartikel

Publikationsstatus

Published

Erschienen in

Surface and Coatings Technology. 2018, 353, pp. 339-345. ISSN 0257-8972. eISSN 1879-3347. Available under: doi: 10.1016/j.surfcoat.2018.09.005

Zusammenfassung

This study explores the feasibility of using laser generated ultrasonic wave to detect the interfacial damage of coating-substrate structure. Two Pearson correlation coefficient based post processing algorithms are respectively modified and used in order to evaluate the damage-induced waveform variation and thus position the damage accurately. In addition, the ultrasonic signals of frequency-domain and time-domain are separately studied to optimize the damage visualization performance of the two approaches. The proposed method helps to facilitate nondestructive examination of laser ultrasonic technique.

Fachgebiet (DDC)

530 Physik

Schlagwörter

Damage detection, Coating-substrate structure, Pearson correlation coefficient, Laser ultrasonics

Zitieren

ISO 690

CHANG, Ying, Dexing YANG, Yuning GUO, 2018. Laser ultrasonic damage detection in coating-substrate structure via Pearson correlation coefficient. In: Surface and Coatings Technology. 2018, 353, pp. 339-345. ISSN 0257-8972. eISSN 1879-3347. Available under: doi: 10.1016/j.surfcoat.2018.09.005

BibTex

@article{Chang2018-11Laser-44338,
  year={2018},
  doi={10.1016/j.surfcoat.2018.09.005},
  title={Laser ultrasonic damage detection in coating-substrate structure via Pearson correlation coefficient},
  volume={353},
  issn={0257-8972},
  journal={Surface and Coatings Technology},
  pages={339--345},
  author={Chang, Ying and Yang, Dexing and Guo, Yuning}
}

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