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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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Mcgarrigle, Cormac
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Topics
Publications (11/11 displayed)
- 2022Influence of extrusion parameters on filled polyphenylsulfone tufting yarns on open-hole tensile strengthcitations
- 2022Characterization of continuous carbon fibre reinforced 3D printed polymer composites with varying fibre volume fractionscitations
- 2022Elastic Modulus and Flatwise (Through-Thickness) Tensile Strength of Continuous Carbon Fibre Reinforced 3D Printed Polymer Compositescitations
- 2021Comparison of Properties and Bead Geometry in MIG and CMT Single Layer Samples for WAAM Applicationscitations
- 2021Influence of Binder Float Length on the Out-of-Plane and Axial Impact Performance of 3D Woven Compositescitations
- 2021Thread-stripping test procedures leading to factors of safety data for friction-drilled holes in thin-section aluminium alloycitations
- 2020Improved crush energy absorption in 3D woven composites by pick density modificationcitations
- 2019Influence of Textile Architecture on the Mechanical Properties of 3D Woven Carbon Composites
- 2019Comparative studies of structure property relationship between glass/epoxy and carbon/epoxy 3D woven composites
- 2019Energy Absorption Mechanisms in Layer-to-Layer 3D Woven Composites
- 2019Improved Energy Absorption in 3D Woven Composites by Weave Parameter Manipulationcitations
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article
Improved crush energy absorption in 3D woven composites by pick density modification
Abstract
Although 3D woven composites have exceptional out-of-plane properties, there is a lack of understanding for these materials in crash application in automotive and aerospace industries. To encourage the use of 3D wovens in crashworthy automotive structures, knowledge must be gained so that designers can adjust the highly flexible weave parameters to create tailor-made performance materials. Here we show that fabric pick density causes large changes in progressive failure modes and associated energy absorption, particularly in the dynamic regime, where the quasi-static to dynamic energy absorption loss typical of composites is completely removed. Compression and flexure properties, which are known to be linked to crash performance in composites, are also investigated for these 3D woven layer-to-layer interlock carbon-epoxy composite structures. 3D fabric preforms are manufactured in three different pick densities: 4, 10 & 16 wefts/cm. With a constant warp density of 12 warps/cm from carbon fibres. Increasing the pick density improved specific energy absorption (SEA) even in relatively inefficient progressive failure modes like folding, which has not previously observed in composite materials. SEA values up to 104 J/g (quasi-static) and 93 J/g (dynamic) are recorded. This work shows that minor weft direction (transverse) weave changes can lead to sizeable improvements in warp direction (axial) energy absorption without fundamentally redesigning the weave architecture.