3 DIMENSIONAL FIBER STRUCTURES FOR COMPOSITES

摘要

This paper unveils a new approach of using Velcro (hook, loop and mushroom-like fasteners) on both sides of fiber plies to make 3D composites and increase their interlaminate strength without disturbing the 2D laying processes of the current major composite production. When the Velcro fiber ply is laid on each other, the adjacent fiber ply will be locked together by the Velcro fasteners, which act as trans-ply reinforcement fibers. In current study, Nylon fibers are chosen to make the 3D Velcro fabric prototype. Velcro 3D composite panels are made with the Velcro fabrics and epoxy. Impact tests are performed on those 3D composite samples. Velcro locked samples show stronger impact resistance than the Velcro unlocked samples.