CPC F01D 5/282 (2013.01) [F05D 2300/603 (2013.01)] | 13 Claims |
1. A blade comprising a structure, the structure being made of composite material and comprising a matrix and a fibrous reinforcement, the structure further comprising a pressure-side wall and a suction-side wall;
wherein the fibrous reinforcement is embedded in the matrix, comprises a first portion forming the suction-side wall of the structure and a second portion forming the pressure-side wall of the structure, and is obtained by three-dimensional weaving of strands, the strands comprising;
first strands and second strands;
wherein the first strands comprise carbon or aramid fibers the Young's modulus of which is greater than 250 GPa; and
wherein the second strands are produced from a viscoelastic material and have a Young's modulus less than 10 Gpa;
wherein the first portion of the fibrous reinforcement comprises uniquely first strands whereas the second portion of the fibrous reinforcement comprises second strands.
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