FIBROUS TEXTURE FOR MANUFACTURING A FAN BLADE MADE OF COMPOSITE MATERIAL

• Main Authors: POSTEC, Clément Pierre, GONDRE, Guillaume Pascal Jean-Charles
• Format: Patent
• Language: English; French; German
• Published: 24.01.2024
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; BLASTING; ENGINE PLANTS IN GENERAL; HEATING; LIGHTING; LOOMS; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; METHODS OF WEAVING; NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES; NON-POSITIVE DISPLACEMENT PUMPS; PERFORMING OPERATIONS; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; STEAM ENGINES; TEXTILES; TRANSPORTING; WEAPONS; WEAVING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; WOVEN FABRICS

A fibrous texture intended to form the fibrous reinforcement of a turbomachine blade made of composite material including a fibrous reinforcement densified by a matrix, wherein the fibrous texture includes an area of reduced stiffness including warp yarns or strands made of second fibers having a second elongation at break greater than the first elongation at break, the area of reduced stiffness extending in the longitudinal direction from the stilt area and up to a height less than or equal to 30% of the height of the blade, extending in the transverse direction between a first area and a second area, the first area extending over a first length from a first edge of the texture intended to form a leading edge, and the second area extending over a second length from a second edge of the texture intended to form a trailing edge.