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Article Dans Une Revue International Journal of Fatigue Année : 2014

Properties evolution of flax/epoxy composites under fatigue loading

Résumé

The tension-tension fatigue behaviour of flax fibre reinforced epoxy matrix composites have been investigated for specimens having [0]12, [90]12, [0/90]3S and [±45]3S lay-ups. The Probabilized Stress-Number of cycles (P-S-N) curves have been determined for each laminate type. The measured stress and strain data allowed to quantify the evolution of the mechanical properties, i.e. stiffness, damping and permanent strain as a function of imposed cycles. Especially, the stiffening phenomenon of flax reinforcements oriented parallel to the loading direction has been confirmed. However, due to the competition between damage development and the fibre stiffening, the increase in the longitudinal Young's modulus was noticed on the composites depending on the ratio of fibres parallel to load direction.
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Dates et versions

hal-01067057 , version 1 (22-09-2014)

Identifiants

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Shaoxiong Liang, Papa-Birame Gning, Laurent Guillaumat. Properties evolution of flax/epoxy composites under fatigue loading. International Journal of Fatigue, 2014, 63, pp.36-45. ⟨10.1016/j.ijfatigue.2014.01.003⟩. ⟨hal-01067057⟩
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