NOVELTY - The process of fabricating a complex part made of a composite material comprising a three-dimensional woven fibrous reinforcement and densified by a matrix, comprises three-dimensional weaving (1) of a continuous fibrous strip comprising fibrous blanks of preforms of many parts to be fabricated, cutting separate fibrous blanks into single part strip, forming a blank cut to obtain a fibrous preform into a single part having a form similar to that of a part to be fabricated, consolidating the preform into a desired form, and densifying the consolidated preform by forming a matrix.    USE - The process is useful for fabricating a complex part made of a composite material, where the complex part is useful for the manufacture of turbine blade (claimed).    ADVANTAGE - The process is capable of economically and easily fabricating a complex part made of a composite material with less consumption of energy, high mechanical properties and improved cracking and impact resistance thus improving the performance and life of the turbine blade.    DETAILED DESCRIPTION - The process of fabricating a complex part made of a composite material comprising a three-dimensional woven fibrous reinforcement and densified by a matrix, comprises three-dimensional weaving (1) of a continuous fibrous strip comprising fibrous blanks of preforms of many parts to be fabricated, cutting separate fibrous blanks into single part strip, forming a blank cut to obtain a fibrous preform into a single part having a form similar to that of a part to be fabricated, consolidating the preform into a desired form, and densifying the consolidated preform by forming a matrix and gaseous-phase chemical infiltration. Before cutting the individual fibrous preforms, the fibrous woven strip is impregnated by a liquid composition comprising a resin for consolidation by crosslinking and pyrolysis of the resin. A fiber-matrix interphase layer is formed on the fibers of the woven fibrous strip before impregnation. The interphase layer has a thickness greater than 100 nm. An additional layer of fiber-matrix interphase is formed, after obtaining the consolidated preform and before densification by the matrix. The additional layer of interphase is prepared by gaseous-phase chemical infiltration in a furnace. Pre-crosslinking of the consolidation resin is carried out after impregnation by the consolidation composition and before cutting the blanks. The fibrous blank is formed in a mold, where the crosslinking and pyrolysis of the consolidation resin are performed continuously. The pyrolysis of the resin is performed for a chemical infiltration operation in gas phase with rise in temperature. The woven strip comprises many rows of fibrous blanks, which extend in the longitudinal direction of the strip. The strip is woven with over-length areas in warp and weft around the fibrous blanks. Each preform is provided as a single piece of a blade and a base of the blade, and is woven along the longitudinal direction corresponding to the blades extending in the weft and warp direction.    DESCRIPTION OF DRAWING(S) - The figure shows a flowchart of a process for fabricating a complex part made of a composite material (Drawing includes non-English language text).    Weaving a fibrous strip (1)    Treating the strip to remove finish and oxide (2)    Forming a first layer of interphase coating (3)    Impregnating with a setting solution (4)    Drying the resulting strip. (5)