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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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| 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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| 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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| 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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Ameur, Mariem Ben
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Publications (6/6 displayed)
- 2020Experimental fatigue behavior of carbon/flax hybrid composites under tensile loadingcitations
- 2019Investigation and identification of damage mechanisms of unidirectional carbon/flax hybrid composites using acoustic emissioncitations
- 2019Hybridization effect on the mechanical and vibration properties of flax-carbon composites
- 2019Tensile Fatigue Behavior of Carbon-Flax/Epoxy Hybrid Compositescitations
- 2019Damage mechanisms assessment of hybrid carbon/flax fibre composites using acoustic emissioncitations
- 2018Damping Analysis of Unidirectional Carbon/Flax Fiber Hybrid Compositescitations
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document
Damage mechanisms assessment of hybrid carbon/flax fibre composites using acoustic emission
Abstract
The purpose of the present experimental study is to describe the damage mechanisms occurring in epoxy matrix composites reinforced with hybrid carbon-flax fibres. The samples tested were consist of unidirectional carbon and flax fibre plies with different stacking sequences. Composite laminates were manufactured by hand lay-up process. The specimens were tested under uniaxial tensile loading. The tests carried out were monitored by the acoustic emission (AE) technique. The results obtained during the monotonic tensile tests were analyzed in order to identify the damage mechanisms evolutions. The recorded events were classified with the k-means algorithm which is a statistical multivariable analysis. In addition, it was an unsupervised classification according to temporal descriptors. The percentage of each damage mechanism to the global failure was evaluated by the hits number and the acoustic energy activity. The AE technique was correlated with scanning electron microscopy (SEM) observations to identify the typical damage mechanisms.