FIELD: composite materials.
SUBSTANCE: invention relates to a method for repairing a part made of a composite material. A method is proposed for repairing a part from a composite material, which includes making a recessed section by removing the composite material in the damaged area. Grooves are made that extend on both sides of the part from the edges of the recessed area. Many holes are formed in the part opening into grooves. Three-dimensional weaving is provided for a fibrous blank of filling parts, comprising a central section having a shape corresponding to the shape of a recessed section, and a plurality of fibre bundles extending from the central section. Blanks of filling parts are placed respectively on one or the other side of the part with fibre bundles placed in the grooves provided on the sides of the part and in the holes, so that the fibre bundles exit into the grooves available on the opposite side of the part. Fibrous blanks of filling parts are impregnated with matrix precursor resin. Resin is converted into a matrix in order to obtain a filling part from a composite material, which is a fibrous reinforcing filler compacted with a matrix.
EFFECT: repair of parts made of composite material with three-dimensional fibrous reinforcement, without compromising the resistance of the material to delamination.
15 cl, 18 dwg
