Abstract
The dynamic compressive experiments were performed on 3D braided composites with different braiding parameters using the Split-Hopkinson-Pressure-Bar (SHPB) technique. The dynamic stress versus strain curves and the important mechanical properties were determined. The influence of braiding parameters on the dynamic properties and failure mechanism of composites are analyzed in detail. The results show that the smaller braiding angle and higher fiber volume fraction will contribute to better longitudinal dynamic compression properties. The damage drastically increases with the braiding angle. Moreover, the composites with a higher fiber volume fraction bear a more severe destruction and become more brittle in failure.
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