| People | Locations | Statistics |
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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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Smith, Robert A.
University of Bristol
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (19/19 displayed)
- 2019A parametric study of segmentation thresholds for X-ray CT porosity characterisation in composite materialscitations
- 2019Fibre direction and stacking sequence measurement in carbon fibre composites using Radon transforms of ultrasonic datacitations
- 2018Characterisation of carbon fibre-reinforced polymer composites through radon-transform analysis of complex eddy-current datacitations
- 2018A numerical study on the influence of composite wrinkle defect geometry on compressive strengthcitations
- 2018Ply-orientation measurements in composites using structure-tensor analysis of volumetric ultrasonic datacitations
- 2018Ultrasonic Analytic-Signal Responses from Polymer-Matrix Composite Laminatescitations
- 20183D ultrasound characterization of woven compositescitations
- 2017Reshaping the testing pyramid: utilisation of data-rich NDT techniques as a Means to Develop a ‘High Fidelity’ Component and Sub-structure Testing Methodology for Composites
- 2017Ultrasonic detection and sizing of compressed cracks in glass- and carbon-fibre reinforced plastic compositescitations
- 2016Acoustic characterization of void distributions across carbon-fiber composite layerscitations
- 2016Acoustic characterization of void distributions across carbon-fiber composite layerscitations
- 2016Ultrasonic tracking of ply drops in composite laminatescitations
- 2016Non-destructive characterisation of composite microstructures
- 2015Progress in non-destructive 3D characterization and modelling of aerospace composites
- 2014Toward the 3D characterisation of GLARE and other fibre-metal laminate composites
- 2014Methods for fibre-orientation characterisation in monolithic carbon-fibre composites
- 20133D characterisation of fibre orientation and resulting material properties
- 2010Use of 3D ultrasound data sets to map the localised properties of fibre-reinforced composites
- 2010Use of 3D ultrasound data sets to map the localised properties of fibre-reinforced composites.
Places of action
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article
Ultrasonic detection and sizing of compressed cracks in glass- and carbon-fibre reinforced plastic composites
Abstract
Nondestructive evaluation of compressed cracks is a major challenge. A quantitative study of the effect of crack-tip closure on the pulse-echo ultrasonic sizing of delaminations in fibre-reinforced polymer-matrix composites (FRP) is presented. In particular, this study focuses on the interaction of ultrasound with a closed crack or kissing disbond, and their effect on the ultrasonic inspectability of FRP laminates consisting of carbon and glass plies. The compression of laminar cracks in these two different laminate types is clearly detectable via both pulse-echo and through-transmission ultrasonic measurements, but the reflected ultrasonic pulses in the two material types exhibit markedly different behaviour. The glass-fibre laminates show a drop in the reflected signal for crack openings up to approximately half the crack growth load, whereas the corresponding carbon-fibre laminates show the expected increase in the reflected signal as the crack opens. The origins of the observed effect of crack closure on the reflection and transmission of ultrasound are analysed in detail to ascertain possible mechanisms responsible for these effects.