| 摘要 |
PROBLEM TO BE SOLVED: To provide a vehicle skeleton member which is composed of a composite material of a thermoplastic resin and a carbon fiber, by which a vehicle structure can possess sufficient rigidity by constituting a vehicle skeleton by using the member, and which is achieved in the large weight reduction of a vehicle body.SOLUTION: A vehicle skeleton member 1 is composed of a composite material of a thermoplastic resin and a carbon fiber. In the vehicle skeleton member including a random material carbon fiber composite material, a form of the carbon fiber of the composite material is formed by tow-dimensionally and randomly arranging discontinuous fibers, the composite material includes long fibers whose fiber lengths are 10 to 100 mm, tension elasticity moduli of a plate-shaped sample in two directions which intersect with each other in a plane are measured, and a ratio which is obtained by dividing larger one of the obtained tension elasticity moduli by a smaller one becomes not larger than two. |
