| 摘要 |
PROBLEM TO BE SOLVED: To enable the production of a fiber-reinforced composite material having a high strength by using a continuous fiber at a low cost. SOLUTION: This fibrous structural material 1 is equipped with a laminated fiber group 2 formed by orienting fiber bundles consisting of the continuous fiber biaxially and thickness directional yarn 3 oriented in the thickness direction for binding the laminated fiber group 2, and formed as a board shape. The laminated fiber group 2 is constituted by laminating alternately an x-yarn layer 4 consisting of the x-yarn 4a as the fiber bundle oriented in a plane crossing to the thickness direction of the fibrous structural material 1 and a y-yarn layer 5 consisting of the y-yarn 5a as the fiber bundle oriented in a plane crossing to the thickness direction of the fibrous structural material in a state of crossing to the x-yarn 4a. The thickness directional yarn 3 is oriented not on all of the area of the laminated fiber froup 2 but in parts not requiring any change on forming a fiber-reinforced composite material having a three dimensional shape by using the fibrous structural material 1 as the reinforcing material. COPYRIGHT: (C)2004,JPO |
