Acoustic emission data based deep learning approach for classification and detection of damage-sources in a composite panel

Sikdar, Shirsendu, Liu, Dianzi and Kundu, Abhishek (2022) Acoustic emission data based deep learning approach for classification and detection of damage-sources in a composite panel. Composites Part B: Engineering, 228. ISSN 1359-8368

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Abstract

Structural health monitoring for lightweight complex composite structures is being investigated in this paper with a data-driven deep learning approach to facilitate automated learning of the map of transformed signal features to damage classes. Towards this, a series of acoustic emission (AE) based laboratory experiments have been carried out on a composite sample using a piezoelectric AE sensor network. The registered time-domain AE signals from the assigned sensor networks on the composite panel are processed with the continuous wavelet transform to extract time-frequency scalograms. A convolutional neural network based deep learning architecture is proposed to automatically extract the discrete damage features from the scalogram images and use them to classify damage-source regions in the composite panel. The proposed deep-learning approach hasshown an effective damage monitoring potential with high training, validation and test accuracy for unseen datasets as well as for entirely new neighboring damage datasets. Further, the proposed network is trained, validated and tested only for the peak-signal data extracted from the raw AE data. The application of peak-signal scalogram data has shown a significant improvement in damage-source classification performance with high training, validation and test accuracy.

Item Type: Article
Additional Information: Funding Information: This research was supported by the Research Foundation-Flanders (FWO) Belgium under grant agreement no. FWO.3E0.2019.0102.01 in the frame of FWO Marie Curie Fellowship. Abhishek Kundu wishes to acknowledge the support from Royal Academy of Engineering, UK for the Industrial Fellowship, reference IF\192013 . Publisher Copyright: © 2021 Elsevier Ltd
Uncontrolled Keywords: acoustic emission,composite structure,deep learning,structural health monitoring,ceramics and composites,mechanics of materials,mechanical engineering,industrial and manufacturing engineering ,/dk/atira/pure/subjectarea/asjc/2500/2503
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Depositing User: LivePure Connector
Date Deposited: 28 Oct 2021 00:49
Last Modified: 10 May 2022 16:30
URI: https://ueaeprints.uea.ac.uk/id/eprint/81901
DOI: 10.1016/j.compositesb.2021.109450

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