| 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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Yasaee, Mehdi
Cranfield University
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (28/28 displayed)
- 2024Experimental and numerical investigation of multi-layered honeycomb sandwich composites for impact mechanics applicationscitations
- 2022Numerical simulations of embedded wrinkle defects geometry on the strength knockdown of FRP compositescitations
- 2021Effect of interfacial fibre orientation and PPS veil density on delamination resistance of 5HS woven CFRP laminates under mode II loadingcitations
- 2021Dynamic characterization of 3D printed mechanical metamaterials with tunable elastic propertiescitations
- 2021Dynamic characterization of 3D printed mechanical metamaterials with tunable elastic propertiescitations
- 2021Ballistic impact and virtual testing of woven FRP laminatescitations
- 2020Fish Cells, a new zero Poisson’s ratio metamaterial - part II: Elastic propertiescitations
- 2020Lay-up optimisation of fibre–metal laminates panels for maximum impact absorptioncitations
- 2020Delamination migration in CFRP laminates under mode I loadingcitations
- 2019Inter-fibre failure of through-thickness reinforced laminates in combined transverse compression and shear loadcitations
- 2019Structural similitude design for a scaled composite wing box based on optimised stacking sequencecitations
- 2019Effective use of metallic Z-pins for composites' through-thickness reinforcementcitations
- 2019Dynamic inter-fibre failure of unidirectional composite laminates with through-thickness reinforcementcitations
- 2018Dynamic bridging mechanisms of through-thickness reinforced composite laminates in mixed mode delaminationcitations
- 2018Inter-fibre failure of through-thickness reinforced laminates in combined transverse compression and shear loadloadcitations
- 2017Influence of Z-pin embedded length on the interlaminar traction response of multi-directional composite laminatescitations
- 2017Dynamic bridging mechanisms of through-thickness reinforced composite laminates in mixed mode delaminationcitations
- 2017Strain rate dependence of mode II delamination resistance in through thickness reinforced laminated compositescitations
- 2016Interaction of Z-pins with multiple mode II delaminations in composite laminatescitations
- 2016Influence of Z-pin embedded length on the interlaminar traction response of multi-directional composite laminatescitations
- 2016Dynamic mode II delamination in through thickness reinforced compositescitations
- 2016On the delamination self-sensing function of Z-pinned composite laminatescitations
- 2016Drawdown prepreg coating method using epoxy terminated butadiene nitrile rubber to improve fracture toughness of glass epoxy compositescitations
- 2015Micro-mechanical finite element analysis of Z-pins under mixed-mode loadingcitations
- 2015Delamination resistance of composites using inclined Z-pins
- 2014A novel model of delamination bridging via Z-pins in composite laminatescitations
- 2014Experimental characterisation of mixed mode traction-displacement relationships for a single carbon composite Z-pincitations
- 2012Inhibiting delaminations in fibre reinforced plastic laminates with dropped plies
Places of action
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article
Strain rate dependence of mode II delamination resistance in through thickness reinforced laminated composites
Abstract
A thorough experimental procedure is presented in which the mode II delamination resistance of a laminated fibre reinforced plastic (FRP) composite with and without Z-pins is characterised when subjected to increasing strain rates. Standard three-point End Notched Flexure (3ENF) specimens were subjected to increasing displacement loading rates from quasi-static (∼0 m/s) to high velocity impact (5 m/s) using a range of test equipment including drop weight impact tower and a Modified Hopkinson Bar apparatus for dynamic three-point bending tests. The procedure outlined uses compliance based approach to calculate the fracture toughness which was shown to produce acceptable values of GIIC for all loading rates. Using detailed high resolution imaging relationships between delamination velocities, apparent fracture toughness, longitudinal and shear strain rates were measured and compared. Confirming behaviours observed in literature, the thermosetting brittle epoxy composite showed minor increase in GIIC with increase in strain rate. However, the Z-pinned specimens showed a significant increase in the apparent GIIC with loading rate. This highlights the need to consider the strain rate dependency of the Z-pinned laminates when designing Z-pinned structures undergoing impact.