| 摘要 |
<p>PROBLEM TO BE SOLVED: To restrain the occurrence of a crack on the periphery of joining yarn of a fiber-reinforced resin with a three-dimensional fiber structure as a reinforcement material, even if inorganic substance system reinforced-fiber such as carbon fiber is used for the whole of the joining yarn and in-plane yarn of the three-dimensional fiber structure.SOLUTION: A fiber-reinforced resin 10 is a fiber-reinforced resin of forming a resin as a matrix, with a three-dimensional fiber structure 11 constituted by joining a laminate fiber layer 13 by yarn (z) in the thickness direction as the joining yarn arranged in the crossing direction with respective fiber layers 12, as the reinforcement material. The respective fiber layers 12 are respectively arranged with any of in-plane yarn 12a-12d so that the laminate fiber layer 13 becomes at least biaxial orientation. In the fiber-reinforced-resin 10, metal powder 18 exists only in a matrix resin 15 around the yarn (z) in the thickness direction.</p> |
