Metal-fiber reinforced resin material composite body and method for producing metal-fiber reinforced resin material composite body

A metal-fiber reinforced resin material composite body comprising

• a metal member,
• a fiber-reinforced resin material laminated on at least one surface of the metal member to form a composite with the metal member, and
• an adhesive resin layer interposed between the metal member and the fiber-reinforced resin material,
• wherein the fiber-reinforced resin material comprises a matrix resin and a reinforcing fiber material contained in the matrix resin,
• wherein the matrix resin is a crosslinked cured product of a crosslinkable resin composition containing a phenoxy resin (A) in the range of 50 parts by mass or more with respect to 100 parts by mass of a resin component and a crosslinkable curable resin (B) in the range of 5 parts by mass or more and 85 parts by mass or less with respect to 100 parts by mass of the phenoxy resin (A),
• wherein a concentration of the phenoxy resin in a resin component of the adhesive resin layer is lower than the concentration of the phenoxy resin in the resin component of the matrix resin,
• wherein the concentration of the phenoxy resin in the resin component of the adhesive resin layer is more than 0 parts by mass and less than 50 parts by mass with respect to 100 parts by mass of the resin component,
• wherein a shear strength between the metal member and the fiber-reinforced resin material is 0.8 MPa or more as measured by JIS K 6850:
• 1999,
• wherein the following Formula (2-2) is satisfied
• C>A2+B Formula (2-2)
• wherein, in the above Formula (2-2), A2 represents a tensile load of the metal member alone when the metal-fiber reinforced resin material composite body is broken, B represents a maximum load of the fiber-reinforced resin material alone, and C is a maximum load of the metal-fiber reinforced resin material composite body, and
• wherein the resin component of the adhesive resin layer is a resin component in a state having a storage elastic modulus higher than that of the phenoxy resin in a temperature range not lower than a glass transition temperature of the phenoxy resin and not higher than a processing temperature when the fiber-reinforced resin material is heated and pressure-bonded.