Relationship between the Index Representing Fiber Orientation State Derived from X-ray Diffraction Image and Tensile Properties in Discontinuous Carbon Fiber Reinforced Polyamide 6

The fiber orientation state in carbon reinforced polyamide 6 composites was expressed by an order parameter (S2) that is used to express the of Nematic Liquid Crystal. S2 derived from X-ray diffraction image reflects distribution. As specimens, various content were prepared and, regardless content, and their tensile properties showed positive correlation. Furthermore, we predicted relation between modulus case quasi-isotropic measured compare with those calculated modified Halpin-Tsai model takes into account length distribution specimens. Because similarity results different methods, it found a useful index represents condition composite materials.