A comparative study of fatigue behaviour of flax/epoxy and glass/epoxy composites

Article dans une revue avec comité de lecture
Auteur
LIANG, Shaoxiong
128669 Département de Recherche en Ingéniérie des Véhicules pour l'Environnement [DRIVE]
GNING, Papa-Birame
128669 Département de Recherche en Ingéniérie des Véhicules pour l'Environnement [DRIVE]
ccGUILLAUMAT, Laurent
206863 Laboratoire des Arts et Métiers ParisTech d'Angers - Procédés Matériaux Durabilité [LAMPA - PMD]

URI
http://hdl.handle.net/10985/9044
DOI
10.1016/j.compscitech.2012.01.011
Date
2012
Journal
Composites Science and Technology

Résumé

Experimental investigations on flax and glass fabrics reinforced epoxy specimens, i.e. FFRE and GFRE, submitted to fatigue tests are presented in this paper. Samples having [0/90]3S and [±45]3S stacking sequences, with similar fibre volume fractions have been tested under tension–tension fatigue loading. The specific stress-number of cycles to failure (S–N) curves, show that for the [0/90]3S specimens, FFRE have lower fatigue endurance than GFRE, but the [±45]3S FFRE specimens offer better specific fatigue endurance than similar GFRE, in the studied life range (<2 × 10^6). Overall, the three-stage stiffness degradation is observed in all cases except for [0/90]3S FFRE specimens, which present a stiffening phenomenon of around 2–3% which could be related to the straightening of the microfibrils.

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