Abstract: A method for manufacturing a turbomachine component made of composite material includes the step of creating a shaped fibrous preform by three-dimensional weaving of filaments to create a fibrous texture which is wound in several superposed layers onto a mandrel of a profile corresponding to that of the component that is to be manufactured, so as to obtain the fibrous preform of a shape corresponding to that of the component that is to be manufactured, the filaments being divided into warp filaments and weft filaments, the warp filaments being interwoven with the weft filaments in a three-dimensional weave. The method further includes the step of creating a stiffening zone in the fibrous preform, the stiffening zone being formed of at least one layer of warp filaments not interwoven with weft filaments that is interposed between the interwoven warp filaments and weft filaments.

Abstract: A fibrous texture for a blade has a three-dimensional weave between a first plurality of yarn layers and a second plurality of yarn layers, includes a blade aerofoil part extending between a first edge and a second edge. The texture includes a first part with at least three yarn layers of the first plurality of yarns and at least three yarn layers of the second plurality of yarns. Yarns of the two yarn layers of the first plurality of yarns bind yarns of the second plurality of yarns to the two yarn layers of the second plurality of yarns with a determined binding frequency.

Abstract: A fibrous preform for forming the fibrous reinforcement of a composite material part, the fibrous preform being made as a single piece and obtained by three-dimensional weaving, the preform including first and second skins and a longitudinal stiffening portion connecting the first to the second skin, the longitudinal stiffening portion forming a stiffening element of the part in the longitudinal direction. The preform has an intermediate portion extending in the longitudinal direction between two end portions. The longitudinal stiffening portion includes, in the intermediate portion, longitudinal non-woven threads or strands held together by first transverse threads or strands coming from the first skin and second transverse threads or strands coming from the second skin. In the end portions, the longitudinal threads or strands of the longitudinal stiffening portion are woven with the transverse threads or strands.

Abstract: A part of a turbomachine made of composite material includes a fiber reinforcement having a three-dimensional weaving including a first set of yarns made of a first material, wherein the fiber reinforcement includes a vibration-damping element formed by a second set of yarns including a second material which is viscoelastic and which is different to the first material, the second set of yarns being woven with the first set of yarns.

Abstract: A preform has a fibrous reinforcement woven in one piece by three-dimensional weaving to create a fan inter-blade platform The platform includes an aerodynamic base and a fixing structure having stiffening elements that extend from the aerodynamic base. The preform includes a first fibrous part configured to form the aerodynamic base, second fibrous part configured to at least partially form the stiffening elements of the inter-blade platform, a first connection zone in which the first and second parts are woven together, and a first disconnection zone delimited by a first disconnection line extending in a transverse direction and in which the first and second parts are separated from one another. The first disconnection zone is adjacent to the first connection zone in a longitudinal direction L.

Abstract: A composite material part including reinforcement made of carbon fibers or yarns consolidated by an organic matrix. The part includes one or more thermally and electrically conductive portions in which the carbon fibers or yarns are free of matrix at least in part, the matrix-free carbon fiber or yarn portions being in contact with a material that is thermally and electrically conductive.

Abstract: Tire (10) comprises a knit (44) comprising: columns of loops, the loops of one and the same column being arranged one after the other substantially in an overall direction referred to as the main direction and rows of said loops, the loops of one and the same row being arranged one beside the other substantially in an overall direction referred to as the transverse direction. The knit (44) comprises first and second zones (451, 452), each respectively having, at least in one of the main or transverse directions, a force FT100 and FS100 at 100% elongation that satisfies FS100<FT100, each force FT100 and FS100 being determined from a force-elongation curve obtained by applying standard ISO 13934-1:2013 to the knit before it is incorporated into the tire (10).

Abstract: A tire that comprises a knit (44) comprising: columns (C1, C2, C3, C4) of loops (B), the loops (B) of one and the same column (C1, C2, C3, C4) being arranged one after the other substantially in an overall direction (X1) referred to as the main direction; and rows (R1, R2, R3, R4) of loops, the loops (B) of one and the same row (R1, R2, R3, R4) being arranged one beside the other substantially in an overall direction (Z1) referred to as the transverse direction. The knit (44) has, in the main overall direction (X1) and/or the transverse overall direction (Z1), a force at 100% elongation greater than or equal to 250 N, the force at 100% elongation being determined from a force-elongation curve obtained by applying standard ISO 13934-1:2013 to the knit (44) embedded in a standard elastomer matrix.

Abstract: The tire (10) comprises at least one set (45) of at least two layers of at least one knit (441, 442), the two layers being at least partially superposed on one another. The knit (441, 442) comprises: columns of loops arranged one after the other substantially in an overall direction (X1) referred to as the main direction, rows of loops arranged one beside the other substantially in an overall direction (Z1) referred to as the transverse direction. The knit (441, 442) has a force at 100% elongation less than or equal to 40 N·row?1 and/or 40 N·column?1, the force at 100% elongation being determined from a force-elongation curve obtained by applying standard ISO 13934-1:2013 to the or each knit (441, 442) embedded in the standard elastomer matrix and the number of rows and/or columns being measured in accordance with standard NF EN 14971.

Abstract: A composite material part including reinforcement made of carbon fibers or yarns consolidated by an organic matrix. The part includes one or more thermally and electrically conductive portions in which the carbon fibers or yarns are free of matrix at least in part, the matrix-free carbon fiber or yarn portions being in contact with a material that is thermally and electrically conductive.