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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Meo, M.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (27/27 displayed)
- 2022High velocity impact on generic CFRP blade specimencitations
- 2021Real-time thermography system for composite welding:Undamaged baseline approachcitations
- 2021Thermoplastic polyurethane composites for railway applications: experimental and numerical study of hybrid laminates with improved impact resistancecitations
- 2019Design and characterization of hybrid hemp/carbon laminates with improved impact resistancecitations
- 2019On high velocity impact on carbon fibre reinforced polymers
- 2019On high velocity impact on carbon fibre reinforced polymers
- 2019Development of multifunctional hybrid metal/carbon composite structurescitations
- 2019Acoustic emission localization in composites using the signal power method and embedded transducerscitations
- 2018Damage detection in composites using nonlinear ultrasonically modulated thermographycitations
- 2018Low energy actuation technique of bistable composites for aircraft morphingcitations
- 2017Damage tolerance of bio-inspired helicoidal composites under low velocity impactcitations
- 2017A novel nonlinear damage resonance intermodulation effect for structural health monitoring
- 2017A structural health monitoring technique for the reconstruction of impact forces in aerospace componentscitations
- 2016Nonlinear damage detection and localization using a time domain approachcitations
- 2015Nonlinear ultrasound modelling and validation of fatigue damagecitations
- 2015Modeling of thermal wave propagation in damaged composites with internal source
- 2015Modeling of thermal wave propagation in damaged composites with internal source
- 2014Impact localization on a composite tail rotor blade using an inverse filtering approachcitations
- 2014Nonlinear damage detection in composite structures using bispectral analysiscitations
- 2014Nonlinear damage detection in composite structures using bispectral analysiscitations
- 2014Material enabled thermographycitations
- 2013Deformation and Damage in Fabric-reinforced Composites Under Bending
- 2013Toughening of Carbon Fibre Composites By Hybridisation with Self-Reinforced Polypropylene
- 2013Hybridization of Ductile Steel Fibre and Self-Reinforced Composites
- 2012Impact localization in composite structures of arbitrary cross sectioncitations
- 2011Acoustic emission source localization in anisotropic structures with diffuse field conditions using a time reversal approach
- 2010A new wavelet based algorithm for impact identification and group velocity determination in composite structures
Places of action
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conferencepaper
Nonlinear damage detection in composite structures using bispectral analysis
Abstract
Literature offers a quantitative number of diagnostic methods that can continuously provide detailed information of the material defects and damages in aerospace and civil engineering applications. Indeed, low velocity impact damages can considerably degrade the integrity of structural components and, if not detected, they can result in catastrophic failure conditions. This paper presents a nonlinear Structural Health Monitoring (SHM) method, based on ultrasonic guided waves (GW), for the detection of the nonlinear signature in a damaged composite structure. The proposed technique, based on a bispectral analysis of ultrasonic input waveforms, allows for the evaluation of the nonlinear response due to the presence of cracks and delaminations. Indeed, such a methodology was used to characterize the nonlinear behaviour of the structure, by exploiting the frequency mixing of the original waveform acquired from a sparse array of sensors. The robustness of bispectral analysis was experimentally demonstrated on a damaged carbon fibre reinforce plastic (CFRP) composite panel, and the nonlinear source was retrieved with a high level of accuracy. Unlike other linear and nonlinear ultrasonic methods for damage detection, this methodology does not require any baseline with the undamaged structure for the evaluation of the nonlinear source, nor a priori knowledge of the mechanical properties of the specimen. Moreover, bispectral analysis can be considered as a nonlinear elastic wave spectroscopy (NEWS) technique for materials showing either classical or non-classical nonlinear behaviour. © 2014 SPIE.