Abstract: The impact property and residual flexural property of three-dimensional (3D) five-direction braided glass/carbon hybrid epoxy composites after impact was studied. In this work, the drop weight impact test and three point bending test were conducted. The results indicate that, after the drop weight impact test, the impact surface is less damaged than the back surface. In the back surface, the disperse of the cracks was mainly along the longitudinal direction, and the three point bending test shows that the flexural modulus of glass fiber composites is increased when mixed with carbon fibers. When the axial yarn arrangement were CF∶GF∶CF, the impact resistance of the hybrid composite is the best. The property of impact resistance is related to hybrid methods.

Key words: three-dimensional five-direction braid, hybrid composite, flexural property, impact resistance