REPAIR OR RESUMPTION OF MANUFACTURE OF A COMPOSITE MATERIAL PART WITH FIBROUS THREE-DIMENSIONAL WOVEN REINFORCEMENT

摘要

Disclosed is a method for repairing a composite material part (10), comprising: - producing a hollowed-out portion (30) by removing the composite material in a damaged area (20), - producing grooves (110, 120) extending on the two faces (11, 12) of the part (10) from the edges (32, 34) of the hollowed-out portion, - producing a plurality of orifices (130) in the thickness of the part, opening into the grooves, - three-dimensional weaving of a fibrous preform of a filling part (40, 50) comprising a central portion (41, 51) having a shape corresponding to the shape of the hollowed-out portion and a plurality of fibre bundles (420, 450) extending from the central portion (41, 51), - placing the filling preforms (40, 50) respectively on one or other face of the part (10) with the fibre bundles present in the grooves present on the faces of the part and in the orifices of the plurality of orifices (130) so that the fibre bundles open into the grooves present on the opposite face of the part, - impregnating the fibrous filling preforms (40, 50) with a resin precursor of a matrix, - transforming the resin into a matrix in order to obtain a filling part made of composite material (60) comprising a fibrous reinforcement densified by a matrix.