Mechanical properties and forming possibilities of a new generation of flax woven fabrics
Résumé
This paper presents the first experimental investigation on dry woven preform made of flax yarns with the view to analyze the formability of these reinforcements made of natural fibre. The specific performing device is presented. It is constituted by a mechanical module designed to form severe geometries such as strongly double curved shapes. It is also constituted by an optical module to measure local strains during the forming process. An analysis of the defaults at the scale of the preform, such as wrinkling or buckle and the measurement of the shear angle of the reinforcement is conducted
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