| 摘要 |
PROBLEM TO BE SOLVED: To provide a carbon fiber bundle suitable for obtaining carbon fiber reinforced composite material excellent in shear mode interlaminar toughness G.SOLUTION: There is provided a carbon fiber bundle consisting of a composite of single fibers having an average stress recovery length evaluated by a polarization microscopic observation of 300 to 500 μm at a strain of a single fiber composite of 3.0%, and having an average tearable distance of 300 to 600 mm. |
