Damage mechanisms assessment of hybrid carbon/flax fibre composites using acoustic emission
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...
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2019-01-01
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doaj-790791f723c0452d8fb95f62faeabb0e2021-02-02T05:32:37ZengEDP SciencesMATEC Web of Conferences2261-236X2019-01-012830300310.1051/matecconf/201928303003matecconf_fcac2019_03003Damage mechanisms assessment of hybrid carbon/flax fibre composites using acoustic emissionBen Ameur MariemRebiere Jean-Luc0El Mahi Abderrahim1Beyaoui Moez2Abdennadher Moez3Haddar Mohamed4Le Mans Université, Laboratoire d’acoustique de l’université du Mans (LAUM)Le Mans Université, Laboratoire d’acoustique de l’université du Mans (LAUM)Ecole Nationale d’Ingénieurs de Sfax, Département Génie Mécanique, Laboratoire de recherche de Mécanique, Modélisation et Production (LA2MP)Ecole Nationale d’Ingénieurs de Sfax, Département Génie Mécanique, Laboratoire de recherche de Mécanique, Modélisation et Production (LA2MP)Ecole Nationale d’Ingénieurs de Sfax, Département Génie Mécanique, Laboratoire de recherche de Mécanique, Modélisation et Production (LA2MP)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.https://www.matec-conferences.org/articles/matecconf/pdf/2019/32/matecconf_fcac2019_03003.pdf |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Ben Ameur Mariem Rebiere Jean-Luc El Mahi Abderrahim Beyaoui Moez Abdennadher Moez Haddar Mohamed |
spellingShingle |
Ben Ameur Mariem Rebiere Jean-Luc El Mahi Abderrahim Beyaoui Moez Abdennadher Moez Haddar Mohamed Damage mechanisms assessment of hybrid carbon/flax fibre composites using acoustic emission MATEC Web of Conferences |
author_facet |
Ben Ameur Mariem Rebiere Jean-Luc El Mahi Abderrahim Beyaoui Moez Abdennadher Moez Haddar Mohamed |
author_sort |
Ben Ameur Mariem |
title |
Damage mechanisms assessment of hybrid carbon/flax fibre composites using acoustic emission |
title_short |
Damage mechanisms assessment of hybrid carbon/flax fibre composites using acoustic emission |
title_full |
Damage mechanisms assessment of hybrid carbon/flax fibre composites using acoustic emission |
title_fullStr |
Damage mechanisms assessment of hybrid carbon/flax fibre composites using acoustic emission |
title_full_unstemmed |
Damage mechanisms assessment of hybrid carbon/flax fibre composites using acoustic emission |
title_sort |
damage mechanisms assessment of hybrid carbon/flax fibre composites using acoustic emission |
publisher |
EDP Sciences |
series |
MATEC Web of Conferences |
issn |
2261-236X |
publishDate |
2019-01-01 |
description |
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. |
url |
https://www.matec-conferences.org/articles/matecconf/pdf/2019/32/matecconf_fcac2019_03003.pdf |
work_keys_str_mv |
AT benameurmariem damagemechanismsassessmentofhybridcarbonflaxfibrecompositesusingacousticemission AT rebierejeanluc damagemechanismsassessmentofhybridcarbonflaxfibrecompositesusingacousticemission AT elmahiabderrahim damagemechanismsassessmentofhybridcarbonflaxfibrecompositesusingacousticemission AT beyaouimoez damagemechanismsassessmentofhybridcarbonflaxfibrecompositesusingacousticemission AT abdennadhermoez damagemechanismsassessmentofhybridcarbonflaxfibrecompositesusingacousticemission AT haddarmohamed damagemechanismsassessmentofhybridcarbonflaxfibrecompositesusingacousticemission |
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