US 11,951,694 B2
Fibrous texture for a casing made of composite material with hybrid warp strands
Baptiste Leblon, Moissy-Cramayel (FR); Clémentine Arnold, Moissy-Cramayel (FR); Clément Bourolleau, Moissy-Cramayel (FR); Thomas Dupays, Moissy-Cramayel (FR); and Serge Domingues, Moissy-Cramayel (FR)
Assigned to SAFRAN AIRCRAFT ENGINES, Paris (FR)
Appl. No. 18/012,837
Filed by SAFRAN AIRCRAFT ENGINES, Paris (FR)
PCT Filed Jun. 15, 2021, PCT No. PCT/FR2021/051065
§ 371(c)(1), (2) Date Dec. 23, 2022,
PCT Pub. No. WO2021/260291, PCT Pub. Date Dec. 30, 2021.
Claims priority of application No. 2006718 (FR), filed on Jun. 26, 2020.
Prior Publication US 2023/0191721 A1, Jun. 22, 2023
Int. Cl. B29C 70/24 (2006.01); D03D 1/00 (2006.01); D03D 15/267 (2021.01); D03D 15/275 (2021.01); D03D 25/00 (2006.01); B29L 31/00 (2006.01)
CPC B29C 70/24 (2013.01) [D03D 1/00 (2013.01); D03D 15/267 (2021.01); D03D 15/275 (2021.01); D03D 25/005 (2013.01); B29L 2031/7504 (2013.01); D10B 2505/02 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A fibrous texture having the shape of a strip extending in a longitudinal direction over a determined length between a proximal portion and a distal portion and in a lateral direction over a determined width between a first lateral edge and a second lateral edge, the fibrous texture having a three-dimensional or multi-layer weaving between a plurality of layers of warp strands extending in the longitudinal direction and a plurality of layers of weft strands extending in the lateral direction, the fibrous texture comprising first and second longitudinal sections each extending over the determined length of the fibrous texture along the longitudinal direction and over a width from the first or second lateral edge smaller than the determined width of the fibrous texture along the lateral direction, the first and second longitudinal sections each comprising warp strands and weft strands constituted by carbon fibers, the fibrous texture further comprising an intermediate section present between the first and second sections, wherein at least a portion of the warp strands present in the intermediate section are hybrid warp strands constituted only by both carbon fiber filaments and glass fibers filaments.
 
8. A method for manufacturing a fibrous texture by three-dimensional or multi-layer weaving between a plurality of layers of warp strands extending in a longitudinal direction and a plurality of layers of weft strands extending in the lateral direction, the fibrous structure having the shape of a strip extending in the longitudinal direction over a determined length between a proximal portion and a distal portion and in the lateral direction over a determined width between a first lateral edge and a second lateral edge, the method comprising the weaving of first and second longitudinal sections each extending over the determined length of the fibrous texture along the longitudinal direction and over a width from the first or second lateral edge smaller than the determined width of the fibrous texture along the lateral direction, the first and second longitudinal sections each comprising warp strands and weft strands constituted by carbon fibers, the method further comprising the weaving of an intermediate section present between the first and second longitudinal sections, wherein at least a portion of the warp strands present in the intermediate section are hybrid warp strands constituted only by both carbon fiber filaments and glass fiber filaments.