The effect of varying aspect ratios on the low strain rate behaviour of metals and polymers

This poster looks at the effect of varying aspect ratios, from 1:4 to 3:1, on a number of different materials, including aluminium and polycarbonate. A range of strain rates (10$^{\mathrm{-4}}$ s$^{\mathrm{-1}}$ to 10$^{\mathrm{+3}}$ s$^{\mathrm{-1}})$ is achieved using quasi-static Instron equipment, drop weight machines and Split Hopkinson Pressure Bars. The mechanical behaviour is discussed, and high-speed video used to further the analysis.