This experimental study investigates a model for ductile plate perforation. The intended application is in vulnerability modelling codes, concerning targets exposed to small calibre threats. The model yields the residual velocity dependent of dimensions and material parameters of rigid projectiles and ductile targets. Thin and thick target plates are modelled separately and the nose shapes investigated are hemispherical, blunt and conical. Experiments with steel projectiles perforating ductile aluminium plates of different thicknesses were performed, where the impact velocity was varied. The residual velocity and the plug mass were measured and compared with the corresponding model prediction. The results are well predicted for all projectiles, except for conical projectiles in thick targets, which yield higher theoretical residual velocities than experimental. The theoretical calculations overestimated the plug mass for thin plate perforation and underestimated it for thick plates.
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