METHOD FOR PRODUCING A PLANAR MULTI-AXIAL COMPOSITE PRODUCT AND RESULTING PRODUCT

This method of producing a planar multi-axial composite product, comprises in particular the steps consisting of: (a) forming a mat (13) having a longitudinal direction and a transverse direction, multi-layer comprising at least the steps consisting in: laying up on a manufacturing support surface a first layer comprising juxtaposed tapes of unidirectional reinforcing fibers preimpregnated with resin, the tapes of the first layer presenting a first angle relative to the longitudinal direction of the mat, laying up on the first layer (10), at least one second layer (11, 12) comprising juxtaposed unidirectional tapes of reinforcing fibers pre-impregnated with resin, the tapes of the second layer presenting a second angle to the longitudinal direction of the mat, (b) carrying out a compaction on the at least two layers, (c) cutting the mat (13) into at least one planar multi-axial composite product having homogeneous deformability properties, in particular for double curvature, that allow members of complex shape to be manufactured.