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Mechanical behaviour and damage mechanisms analysis of a flax-fibre reinforced composite by acoustic emission

Article dans une revue avec comité de lecture
Auteur
MONTI, Arthur
961 Laboratoire d'Acoustique de l'Université du Mans [LAUM]
EL MAHI, Abderrahim
961 Laboratoire d'Acoustique de l'Université du Mans [LAUM]
JENDLI, Zouhaier
ccGUILLAUMAT, Laurent
206863 Laboratoire des Arts et Métiers ParisTech d'Angers - Procédés Matériaux Durabilité [LAMPA - PMD]

URI
http://hdl.handle.net/10985/11140
DOI
10.1016/j.compositesa.2016.07.002
Date
2016
Journal
Composites Part A: Applied Science and Manufacturing

Résumé

This article presents the mechanical characterization of an eco composite consisting of a thermoplastic matrix reinforced by flax fibres. Different configurations of specimens were tested with uniaxial tensile loading and their mechanical behaviours were discussed. Moreover, the acoustic emission technique was used to detect the appearance of damage mechanisms and to follow their evolution. In addition, a list of these mechanisms was established by means of macroscopic and microscopic observations. The acoustic emission records were post processed by the k-means unsupervised pattern recognition algorithm. Depending on the specimen configuration, three or four classes of events were obtained. The acoustic characteristics of these classes were compared. Then, a correlation between these AE events classes and the damage mechanisms observed was proposed. Their effects on the mechanical behaviour of the material were investigated by means of a variable called the Sentry Function.

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  • Laboratoire Angevin de Mécanique, Procédés et InnovAtion (LAMPA)

Documents liés

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  • Flax Fibers Reinforced Thermoplastic Resin Based Biocomposites, a Future for Sustainable Composite Parts 
    Communication avec acte
    DERBALI, Imed; MONTI, Arthur; EL MAHI, Abderrahim; JENDLI, Zouhaier; ccGUILLAUMAT, Laurent; ccTEREKHINA, Svetlana (EDP Sciences, 2018)
    One of the major challenges of thermoplastic matrix based composites is to manufacture finished parts both in one shot process and in a reduced time production. For this purpose, two techniques were developed to manufacture ...
  • Experimental and finite elements analysis of the vibration behaviour of a bio-based composite sandwich beam 
    Article dans une revue avec comité de lecture
    MONTI, Arthur; EL MAHI, Abderrahim; JENDLI, Zouhaier; ccGUILLAUMAT, Laurent (Elsevier, 2017)
    This paper presents the results of experimental and numerical analyses of the flexural vibration behaviour of bio-based sandwich structures and their composite faces, and particularly their damping properties. The material ...
  • Quasi-static and fatigue properties of a balsa cored sandwich structure with thermoplastic skins reinforced by flax fibres 
    Article dans une revue avec comité de lecture
    MONTI, Arthur; EL MAHI, Abderrahim; JENDLI, Zouhaier; ccGUILLAUMAT, Laurent (SAGE Publications, 2018)
    This paper presents the results of several experimental analyses performed on a biobased sandwich structure. The material studied is made up of thermoplastic skins reinforced by flax fibres and applied to a balsa core. It ...
  • Scale effects on the response of composite structures under impact loading 
    Article dans une revue avec comité de lecture
    BALLERE, Ludovic; LATAILLADE, Jean-Luc; ccGUILLAUMAT, Laurent; ccVIOT, Philippe (Elsevier, 2008)
    For several years, composite materials have taken a significant part in the realization of structures designed for transport (aeronautical, nautical, automotive. . .). In order to qualify the behavior of such structures, ...
  • Quasi-static behaviour and damage assessment of flax/epoxy composites 
    Article dans une revue avec comité de lecture
    LIANG, Shaoxiong; GNING, Papa-Birame; ccGUILLAUMAT, Laurent (Elsevier, 2015)
    Experimental investigations were conducted on flax and E-glass fibres reinforced epoxy matrix composites subjected to quasi-static loadings. Flax/epoxy samples having [0]12, [90]12, [0/90]3S and [±45]3S stacking sequences, ...

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