TEST SPECIMEN MADE OF COMPOSITE MATERIAL AND CORRESPONDING MANUFACTURING PROCESS

Abstract

The invention relates to a method for manufacturing a characterization test specimen (100) made of composite material, comprising a step of producing a fibrous preform by three-dimensional weaving of layers of longitudinal yarns (120) with layers of transverse yarns (125), the fibrous preform (110) having a length along a longitudinal direction (L) and a thickness along a transverse direction (T), the fibrous preform having a shape corresponding to that of at least one test specimen to be manufactured and comprising a central portion delimited by two extreme portions, the central portion having a width called central width and the extreme portions each having a width called extreme width along a third direction (V), the central width being less than each of the extreme widths of the two extreme portions,The longitudinal wires (120) are continuous along the entire length of the preform, and the transverse wires are continuous through the entire thickness of the preform. Figure for the abbreviation: Figure 2,