Composite material comprising fibers with interlocking shapes, and method to manufacture it

摘要

A composite article comprising a plurality of fibers (22) having upper, 0 lower and side surfaces, the fibers being embedded within a matrix. At least one of the upper and lower surfaces of at least one of the fibers includes a notch region (40) and a pair of side regions (42) on opposite sides of the notch region. The plurality of fibers are arranged in layers. At least one of the fibers of one of the layers is received within the notch region of at least one of the fibers of another one of the layers.