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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Main Authors: Ben Ameur Mariem, Rebiere Jean-Luc, El Mahi Abderrahim, Beyaoui Moez, Abdennadher Moez, Haddar Mohamed
Format: Article
Language:English
Published: EDP Sciences 2019-01-01
Series:MATEC Web of Conferences
Online Access:https://www.matec-conferences.org/articles/matecconf/pdf/2019/32/matecconf_fcac2019_03003.pdf
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spelling 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
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