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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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Ostachowicz, Wiesław
Polish Academy of Sciences
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (17/17 displayed)
- 2023Deep learning for automatic assessment of breathing-debonds in stiffened composite panels using non-linear guided wave signalscitations
- 2022Shear Strain Singularity-Inspired Identification of Initial Delamination in CFRP Laminates: Multiscale Modulation Filter for Extraction of Damage Features
- 2022Electromechanical impedance based debond localisation in a composite sandwich structurecitations
- 2021Extended Non-destructive Testing for the Bondline Quality Assessment of Aircraft Composite Structurescitations
- 2021Adhesive Bonding of Aircraft Composite Structures
- 2020Nonlinear elastic wave propagation and breathing-debond identification in a smart composite structurecitations
- 2019Nondestructive analysis of core-junction and joint-debond effects in advanced composite structurecitations
- 2019Ultrasonic Lamb wave-based debonding monitoring of advanced honeycomb sandwich composite structurescitations
- 2019Effects of debonding on Lamb wave propagation in a bonded composite structure under variable temperature conditionscitations
- 2019Ultrasonic guided wave propagation in a repaired stiffened composite panelcitations
- 2019Damage-induced acoustic emission source monitoring in a honeycomb sandwich composite structurecitations
- 2018Damage-induced acoustic emission source identification in an advanced sandwich composite structurecitations
- 2018Online detection of barely visible low-speed impact damage in 3D-core sandwich composite structurecitations
- 2015Embedded Damage Localization Subsystem Based on Elastic Wave Propagationcitations
- 2014Calibration Problem of AD5933 Device for Electromechanical Impedance Measurements
- 2014Damage Detection in Composites by Noncontact Laser Ultrasonic
- 2013Embedded Signal Processing Subsystem for SHM
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document
Ultrasonic guided wave propagation in a repaired stiffened composite panel
Abstract
<p>Stiffened carbon-fibre-reinforced composite structures are extensively used in the aerospace industry for constructing aircraft wings, fuselage, and several other structural components. These structures are often prone to damage due to ageing, cyclic loading and impact. The wave propagation based structural health monitoring technique is widely used for identifying such damage in these structures. This paper presents the analysis of guided wave propagation in a repaired stiffened composite aircraft-wing panel, in order to understand the wave propagation phenomenon in such complex multi-layered structure. Towards this, a coordinated theoretical, numerical and experimental investigation has been carried out. The dispersion curves for the structure are theoretically obtained by using a fast and efficient semi-analytical model to study the dispersion characteristics of the propagating guided waves at the high-frequency range. An extensive finite element based numerical simulation of guided wave propagation in the sample structure is carried out in ABAQUS. Based on the theoretically obtained dispersion curves, different wave modes in the signals are effectively identified. It is observed that the presence of a localized patch repair region in the structure significantly influences the wave mode amplitudes and propagation velocities. Laboratory experiments are then conducted, in order to verify the numerical simulation results. A good agreement is noticed between the simulation and experimental results, in all the cases studied. A series of parametric study is also numerically carried out, in order to check the influence of repaired region size on the propagating guided wave modes in the structure.</p>