Nonlinear elastic wave propagation and breathing-debond identification in a smart composite structure

Sikdar, Shirsendu, van Paepegem, Wim, Ostachowicz, Wiesław and Kersemans, Mathias (2020) Nonlinear elastic wave propagation and breathing-debond identification in a smart composite structure. Composites Part B: Engineering, 200. ISSN 1359-8368

Full text not available from this repository.


This paper addresses a problem on geometric-nonlinearity, due to the occurrence of breathing-debond in a smart composite structure (SCS). In order to solve the problem, elastic wave propagation based numerical simulations and laboratory experiments were carried out on SCS with baseplate – stiffener debonds. The frequency-domain analysis of the numerical and experimental signals shows that the presence of breathing-debond produces a prominent nonlinear response in terms of higher-harmonics. It was also noticed that the magnitudes of those harmonics significantly change with the increase in propagation distance. A baseline-free online breathing-debond source localization strategy is proposed that exclusively uses the changes in second harmonic magnitudes of the elastic wave signals registered at the sensor-networks in SCSs. The study was further extended for variable debond sizes and locations. It is observed that the proposed monitoring strategy is capable of localizing a wide range of breathing-debond sources in the SCSs.

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 MSCA-IF fellowship. SS wishes to acknowledge the support from the Polish National Science Centre (NCN), Poland under grant agreement number UMO-2018/29/B/ST8/02904 . Publisher Copyright: © 2020 Elsevier Ltd
Uncontrolled Keywords: breathing-debond,elastic wave propagation,geometric nonlinearity,sensor network,smart composite structure,structural health monitoring,ceramics and composites,mechanics of materials,mechanical engineering,industrial and manufacturing engineering ,/dk/atira/pure/subjectarea/asjc/2500/2503
Faculty \ School: Faculty of Science > School of Engineering
Related URLs:
Depositing User: LivePure Connector
Date Deposited: 10 Nov 2021 08:13
Last Modified: 20 Apr 2023 22:37
DOI: 10.1016/j.compositesb.2020.108304

Actions (login required)

View Item View Item