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Delamination Localization in Multilayered CFRP Panel Based on Reconstruction of Guided Wave Modes

Authors :
Mastan Raja Papanaboina
Elena Jasiuniene
Vykintas Samaitis
Liudas Mažeika
Paulius Griškevičius
Source :
Applied Sciences, Vol 13, Iss 17, p 9687 (2023)
Publication Year :
2023
Publisher :
MDPI AG, 2023.

Abstract

Multi-layered composite materials are being used in various engineering fields, such as aerospace, automobile, and wind energy, because of their superior material properties. Due to various impact loads during the service life of composite structures, different types of defects can occur, such as matrix cracking, fiber breakage, delaminations, etc. In this research, a novel SHM technique for delamination detection and localization using a minimum number of sensors is proposed. The analytical, numerical, and experimental analysis of GW was performed to increase the probability of detection and localization of delaminations in CFRP material. A new analytical model was developed, which enables identifying converted and transmitted modes in the presence of multiple GW modes. A 2D FFT-based spatial filtering was used to filter the GW modes. The dominant A0 mode was separated to inspect the delamination. Phase velocity is one of the important features in GW inspection to localize the delamination. A phase spectrum approach was developed to reconstruct the phase velocity dispersion of the GW modes in case material properties are unknown.

Details

Language :
English
ISSN :
20763417
Volume :
13
Issue :
17
Database :
Directory of Open Access Journals
Journal :
Applied Sciences
Publication Type :
Academic Journal
Accession number :
edsdoj.1c11cb6c3144470483efbd177c2137b4
Document Type :
article
Full Text :
https://doi.org/10.3390/app13179687