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

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Abstract
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 nonlinear 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 nonlinear debond sources in the SCSs.
Keywords
breathing-debond, geometric nonlinearity, smart composite structure, sensor network, elastic wave propagation, structural health monitoring

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Citation

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MLA
Sikdar, Shirsendu, et al. “Nonlinear Elastic Wave Propagation and Breathing-Debond Identification in a Smart Composite Structure.” COMPOSITES PART B - ENGINEERING, vol. 200, 2020, doi:10.1016/j.compositesb.2020.108304.
APA
Sikdar, S., Van Paepegem, W., Ostachowicz, W., & Kersemans, M. (2020). Nonlinear elastic wave propagation and breathing-debond identification in a smart composite structure. COMPOSITES PART B - ENGINEERING, 200. https://doi.org/10.1016/j.compositesb.2020.108304
Chicago author-date
Sikdar, Shirsendu, Wim Van Paepegem, Wiesław Ostachowicz, and Mathias Kersemans. 2020. “Nonlinear Elastic Wave Propagation and Breathing-Debond Identification in a Smart Composite Structure.” COMPOSITES PART B - ENGINEERING 200. https://doi.org/10.1016/j.compositesb.2020.108304.
Chicago author-date (all authors)
Sikdar, Shirsendu, Wim Van Paepegem, Wiesław Ostachowicz, and Mathias Kersemans. 2020. “Nonlinear Elastic Wave Propagation and Breathing-Debond Identification in a Smart Composite Structure.” COMPOSITES PART B - ENGINEERING 200. doi:10.1016/j.compositesb.2020.108304.
Vancouver
1.
Sikdar S, Van Paepegem W, Ostachowicz W, Kersemans M. Nonlinear elastic wave propagation and breathing-debond identification in a smart composite structure. COMPOSITES PART B - ENGINEERING. 2020;200.
IEEE
[1]
S. Sikdar, W. Van Paepegem, W. Ostachowicz, and M. Kersemans, “Nonlinear elastic wave propagation and breathing-debond identification in a smart composite structure,” COMPOSITES PART B - ENGINEERING, vol. 200, 2020.
@article{8671445,
  abstract     = {{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 nonlinear 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 nonlinear debond sources in the SCSs.}},
  articleno    = {{108304}},
  author       = {{Sikdar, Shirsendu and Van Paepegem, Wim and Ostachowicz, Wiesław and Kersemans, Mathias}},
  issn         = {{1359-8368}},
  journal      = {{COMPOSITES PART B - ENGINEERING}},
  keywords     = {{breathing-debond,geometric nonlinearity,smart composite structure,sensor network,elastic wave propagation,structural health monitoring}},
  language     = {{eng}},
  pages        = {{12}},
  title        = {{Nonlinear elastic wave propagation and breathing-debond identification in a smart composite structure}},
  url          = {{http://dx.doi.org/10.1016/j.compositesb.2020.108304}},
  volume       = {{200}},
  year         = {{2020}},
}

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