Marie Lozachmeur - Academia.edu (original) (raw)
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Papers by Marie Lozachmeur
The present study aims at the determination of the effects of textiles parameters of flax reinfor... more The present study aims at the determination of the effects of textiles parameters of flax reinforced quasi-unidirectional
fabrics on the mechanical properties of composites impregnated with epoxy matrix. The characterization tests shown
that the decrease of the twist angle of threads improves significantly the quasi-static mechanical performances. The
increase in threads count has low impact on the tensile modulus. However, it affects the plies stacking pattern and
increases the flexural modulus when the yarns are opposite. Measurements of vibrational damping behaviour of these
materials have been performed by impact hammer equipped with a special bench to control the transferred force to the
tested structure. Damping of different composites has been characterized, though measured transfer functions showed a
non linear behaviour dependent on the excitation force.
The present study aims at the determination of the effects of textiles parameters of flax reinfor... more The present study aims at the determination of the effects of textiles parameters of flax reinforced quasi-unidirectional
fabrics on the mechanical properties of composites impregnated with epoxy matrix. The characterization tests shown
that the decrease of the twist angle of threads improves significantly the quasi-static mechanical performances. The
increase in threads count has low impact on the tensile modulus. However, it affects the plies stacking pattern and
increases the flexural modulus when the yarns are opposite. Measurements of vibrational damping behaviour of these
materials have been performed by impact hammer equipped with a special bench to control the transferred force to the
tested structure. Damping of different composites has been characterized, though measured transfer functions showed a
non linear behaviour dependent on the excitation force.