| 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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Yousaf, Zeshan
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (10/10 displayed)
- 2024Enhancing the fire-resistance performance of composite laminates via multi-scale hybridisation: A reviewcitations
- 2022Investigation of the impact and post-impact behaviour of glass and glass/natural fibre hybrid composites made with various stacking sequences: experimental and theoretical analysiscitations
- 2022Influence of yarn hybridisation and fibre architecture on the compaction response of woven fabric preforms during composite manufacturingcitations
- 2022Influence of yarn-hybridisation on the mechanical performance and thermal conductivity of composite laminatescitations
- 2021Geometrical and Mechanical Characterisation of Hollow Thermoplastic Microspheres for Syntactic Foam Applicationscitations
- 2020Following the effect of braid architecture on performance and damage of carbon fibre/epoxy composite tubes during torsional straining
- 2020Damage evolution in braided composite tubes under torsion studied by in-situ X-ray computed tomographycitations
- 2020Damage evolution in braided composite tubes under torsion studied by in-situ X-ray computed tomographycitations
- 2017Digital element simulation of aligned tows during compaction validated by computed tomography (CT)citations
- 2017INFLUENCE OF TOW ARCHITECTURE ON COMPACTION AND NESTING IN TEXTILE PREFORMScitations
Places of action
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article
Damage evolution in braided composite tubes under torsion studied by in-situ X-ray computed tomography
Abstract
Here we present the first real-time three dimension (3D) observations of damage evolution in a composite tube under torsion. An in-situ torsion test of 1/1 45° (diamond) braided carbon fibre-epoxy circular composite tube was performed on a loading rig and the damage process was characterised by synchrotron X-ray computed tomography (CT). A number of damage modes and their damage sequence has been identified and monitored globally and in more detail within a representative region of interest. In particular, intra-tow cracks and inter-tow debonding have been found to occur almost simultaneously at low shear strains (1.5%). It is noteworthy that inter-tow debonding was initially trapped/limited within repeated braid units before propagating and connecting with other damage modes in 3D. The area fraction of inter-tow debonds was quantified at different stages and it was found to dramatically increase with increasing shear strain beyond 1.5%. The total volume fraction of the observed intra-tow cracks of various forms was seen to grow rapidly beyond shear strain of 2.0%. Beyond the peak shear stress (at shear strain of 2.5%), fibre micro-buckling and kink bands occur in the tows subjected to torsion induced axial compression at crimped regions close to tow crossovers. Tow crossovers control many aspects of damage propagation under torsion, positively by localising inter-tow debonds and negatively by initiating fibre micro-buckling.