| 摘要 |
<p>PROBLEM TO BE SOLVED: To obtain a tubular form of fiber-reinforced composite material which has outstanding rupture strength in bending, rupture deflection in bending and high impact absorbing energy. SOLUTION: This tubular form contains a high compression breaking strain layer which contains carbon fibers orientatedθ±15 deg. with the longitudinal direction of the tubular form. In addition, the modulas of compression elasticity, in a direction in which the carbon fibers are orientated, of the carbon fibers, which is calculated based on the conversion of a compression breaking strain in the high compression breaking strain layer, in the direction in which the carbon fibers are orientated, as 1-5% and the fiber-volume content of the carbon fibers as 60%, is 3-120 GPa.</p> |
