Fiber-reinforced composite material and method for manufacturing the same

Abstract

Provided is a fiber-reinforced composite material capable of increasing the adhesive strength between a first composite material layer including a fibrous substrate in which reinforcement fiber bundles are arranged crosswise, and a second composite material layer including second reinforcement fibers that are arranged at random, and a method for manufacturing the same. A fiber-reinforced composite material includes: a first composite material layer 11A including: a fibrous substrate 14 including reinforcement fiber bundles 13 crossing, the reinforcement fiber bundles being drawn and aligned first reinforcement fibers 12; and first thermoplastic resin, with which at least each of the reinforcement fiber bundles 13 is impregnated; and a second composite material layer 41A including second reinforcement fibers 42 that are arranged at random in second thermoplastic resin 46. The fiber-reinforced composite material 1 includes the first composite material layer 11A and the second composite material layer 41A that are bonded to each other. The first composite material layer 11A has a plurality of bores 15 on at least a surface thereof that is to be bonded with the second composite material layer 41A. The second reinforcement fibers 42 and the second thermoplastic resin 46 enter into the bores 15.

Dependencies are inferred from the claim text.