CYLINDRICAL UNIDIRECTIONAL MATERIAL, FRP COMPOUND MATERIAL, AND METHOD FOR MANUFACTURING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a cylindrical unidirectional material of high strength having a high freedom in shape, a FRP compound material and a method for manufacturing the same. SOLUTION: The FRP compound material 1 comprises a core material 2 having a long-sized shape and a cylindrical unidirectional material 3 covering the core material 2. The cylindrical unidirectional material 3 has bundles 4 of a plurality of reinforcing fibers. The bundles 4 of a plurality of reinforcing fibers are knitted into a line of organic fiber 5 to form a cylinder. The bundles 4 of a plurality of reinforcing fibers are arranged in the same direction of the longitudinal direction A. Further, the cylindrical unidirectional material 3 is impregnated with a resin, and the resin is cured so that it is integrated with the core material.