Mixing of fibers of fiber reinforcement of fan blade with elastic fibers

The invention relates to a fan blade (1) of a turbomachine, comprising a structure made of a composite material comprising a fibrous reinforcement (4) obtained by three-dimensional weaving of strands (12, 14) and a matrix in which the fibrous reinforcement (4) is embedded; the fibrous reinforcement comprises a first section (13) forming a suction side wall (6b) and a second section (15) forming a pressure side wall (6a), the strands of the fibrous reinforcement (4) comprising a first strand comprising aramid fibers or carbon fibers and having a Young's modulus greater than 250 GPa, and a second strand (14) comprising aramid fibers or carbon fibers and having a Young's modulus greater than 250 GPa, the second strand is made of a viscoelastic material and the Young's modulus of the second strand is less than 10 GPa. The first section (13) comprises only the first strands (12) and the second section (15) comprises the second strands (14). 本发明涉及一种涡轮机的风扇轮叶(1)，该风扇轮叶包括由复合材料制成的结构体，该复合材料包括通过股线(12，14)的三维编织获得的纤维增强体(4)以及