Beijing University of Aeronautics and Astronautics, Beijing,
Vice director, Institute of Aircraft Design and Research, Beijing University of Aeronautics and Astronautics, Beijing,
This paper investigates the relationship between fabric structure and composite properties for 2-D and 3-D carbon fiber reinforced composites that contain the same fiber volume fraction. The investigation involved determining the tensile strength and modulus, flexural, and interlaminar shear strengths of each specimen type. The 2-D composite shows better in-plane tensile properties than the 3-D composite due to the lower yarn crimp and consequently higher length of yarn orientated in the stress direction. Through-the-thickness reinforcement in the 3-D fabric was found to increase the apparent short beam shear and flexure strengths due to suppression of delamination.
Paper ID: CTR10610J