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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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Ege, Kerem
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Topics
Publications (12/12 displayed)
- 2024Electromechanical coupling optimization for a sandwich beam activation using piezoceramics
- 2023On the estimation of the shear modulus of a honeycomb sandwich panel from X-ray mapping of its core.
- 2023On the estimation of the shear modulus of a honeycomb sandwich panel from X-ray mapping of its core
- 2022Wave correlation approaches to analyse 3D velocity fields: application to a honeycomb core composite panel
- 2021Development of the Corrected Force Analysis Technique for laminated composite panelscitations
- 2020On the structural dynamics of laminated composite plates and sandwich structures; a new perspective on damping identificationcitations
- 2018Assessment of the apparent bending stiffness and damping of multilayer plates; modelling and experimentcitations
- 2018Spatial Patterning of the Viscoelastic Core Layer of a Hybrid Sandwich Composite Material to Trigger Its Vibro-Acoustic Performancescitations
- 2018Modeling, designing and measuring hybrid sandwich composite panels with optimized damping properties
- 2017Versatile hybrid sandwich composite combining large stiffness and high damping: spatial patterning of the viscoelastic core layercitations
- 2015Vibrational behavior of multi-layer plates in broad-band frequency range: comparisons between experimental and theoretical estimations
- 2013Sandwich patch with thermoviscous fluid core, for increasing damping of panels
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article
On the estimation of the shear modulus of a honeycomb sandwich panel from X-ray mapping of its core.
Abstract
<jats:p>Honeycomb sandwich panels are widely used in the industry because of their outstanding stiffness to mass ratios. The dynamic response of such structures is known to be relatively complex especially in the mid-frequency domain where a strong orthotropy can be observed. Several equivalent models are available in the literature to understand and predict this behavior, all relying on an assumption that the geometry of the honeycomb core is periodic and perfectly known. The effect of imperfection inevitably introduced at the manufacturing stage are characterized in this work using X-ray measurements. A simple homogenization approach is proposed, allowing the prediction of the shearing properties of the core from statistics extracted from its geometry. These properties are used to predict the dynamic behavior of the structure using a multi-layer analytical model. Results are compared to Laser Doppler Vibrometer measurements, showing a very good agreement with the predictions based on X-ray pictures.</jats:p>