Fiber reinforced plastic member for vehicle body

A fiber reinforced plastic member which is a fiber reinforced plastic member for a vehicle body. the fiber reinforced plastic member comprising:

• a plurality of first reinforced fiber layers formed by reinforced fiber bundles which are not spread;
• a second reinforced fiber layer group in which a plurality of second reinforced fiber layers formed by reinforced fiber bundles which are spread are continuously stacked;
• and
• a matrix resin which is impregnated into the plurality of first reinforced fiber layers and the plurality of second reinforced fiber layers and is reinforced by the plurality of first reinforced fiber layers and the plurality of second reinforced fiber layers, wherein
• when a load is generated in an in-plane direction by an external force bending the fiber reinforced plastic member and a compressive force or a tensile force acts on the fiber reinforced plastic member, in a case where a region of a bending inner side of the fiber reinforced plastic member is defined as a compressive side region on which a compressive stress acts and a region of a bending outer side of the fiber reinforced plastic member is defined as a tensile side region on which a tensile stress acts with respect to a center plane having a thickness of the fiber reinforced plastic member, the second reinforced fiber layer group is arranged only in the compressive side region.

A fiber reinforced plastic member which is a fiber reinforced plastic member for a vehicle body, the fiber reinforced plastic member comprising:

• a plurality of first reinforced fiber layers formed by reinforced fiber bundles which are not spread;
• a second reinforced fiber layer group in which a plurality of second reinforced fiber layers formed by reinforced fiber bundles which are spread are continuously stacked;
• and
• a matrix resin which is impregnated into the plurality of first reinforced fiber layers and the plurality of second reinforced fiber layers and is reinforced by the plurality of first reinforced fiber layers and the plurality of second reinforced fiber layers, wherein the second reinforced fiber layer group is arranged on a vehicle interior side with respect to a center plane having a thickness of the fiber reinforced plastic member.

A vehicle body panel member composed of a fiber reinforced plastic member, the fiber reinforced plastic member comprising:

• a plurality of first reinforced fiber layers formed by reinforced fiber bundles which are not spread;
• a second reinforced fiber layer group in which a plurality of second reinforced fiber layers formed by reinforced fiber bundles which are spread are continuously stacked;
• and
• a matrix resin which is impregnated into the plurality of first reinforced fiber layers and the plurality of second reinforced fiber layers and is reinforced by the plurality of first reinforced fiber layers and the plurality of second reinforced fiber layers, wherein
• the second reinforced fiber layer group is arranged on an outer surface side of a vehicle body with respect to a center plane having a thickness of the fiber reinforced plastic member.