Through-thickness stitching effects on graphite/epoxy high-strain-rate compressive properties

A split Hopkinson pressure bar is used to obtain high-strain-rate, compressive mechanical properties of a uni-weave AS4/3501-6 composite laminate with and without reinforcement stitching in the through thickness, For both in-plane and out-of-plane directions, the compressive mechanical properties of yield stress, yield strain, ultimate strength, ultimate strain, and modulus of elasticity are determined fur strain rates varying from 233 to 1216 s(-1).