Figure 6
The Al or nylon sheet specimens of (a) the bulk Al or nylon sheet specimens without honeycomb cavities are referred to as ‘BA or BN’, respectively, (b) 2.5, (c) 2.0, (d) 1.5, (e) 1.0, and (f) 0.5 mm in honeycomb-wall thickness are referred to as ‘2.5A or 2.5N’, ‘2.0A or 2.0N’, ‘1.5A or 1.5N’, ‘1.0A or 1.0N’, and ‘0.5A or 0.5N’, respectively, and the bulk Al or nylon sheet specimens without honeycomb cavities are referred to as ‘BA or BN’, respectively. Schematic diagrams of the (g) original and (h) modified split Hopkinson pressure bar (SHPB).
