Dynamic Compressive Mechanical Properties of a Whishers Secondary Reinforced Composite

To understand the quasi-static and dynamic compressive mechanical properties of a kind of glass-fiber polymer composites embedded with ZnO whiskers, several quasi-static and dynamic compression experiments in the normal and in-plane direction were conducted, by means of universal test machines and Hopkinson bars technology respectively. SEM images of fracture of specimen were achieved in each direction. The experimental results showed that the materials had obvious non-linear constitutive relation and strain rate strengthening effect. Specimens had various failure modes, which failed as shear fracture in the normal direction and as de-lamination and splitting failures, respectively.