FIBROUS TEXTURE FOR TURBINE ENGINE BLADE MADE OF COMPOSITE MATERIAL

摘要

The invention relates to a fibrous texture (100) intended to form the fibrous reinforcement of a turbine engine (1) blade (10) made of composite material, the texture being in a single piece and having a three-dimensional weave between a plurality of first fibre warp yarns or strands extending in a radial direction (L) and a plurality of first fibre weft yarns or strands extending in a chord direction (T), the texture comprising a blade root portion (110) and a blade airfoil portion (120) extending between the blade root portion and a free end (121) of the fibrous texture. The blade airfoil portion (120) has a reinforced area (140) in the vicinity of the free end (121) of the texture comprising weft yarns or strands made of second fibres different from the first fibres, the second fibres having an elongation at break greater than that of the first fibres, and characterised in that a first ratio of second fibres in the reinforced area (140) is greater than a second ratio of second fibres in the rest of the blade airfoil portion (120).