Selected results of studies on impact of truncated conical aluminium projectiles on thinaluminium targets at low velocities are discussed. The results of the study were comparedwith those obtained using a corresponding non-truncated projectile that underwent tipflattening during impact. Truncated projectiles were found to be better perforators thancorresponding tip-deforming non-truncated projectiles. Truncation with meplat diametersmore than the target thicknesses was observed to prevent tip deformation. Plugs withdiameter corresponding to the meplat diameter were ejected in all the cases. The target localmode of failure changed from petalling to minimal flanging without petal formation as thepercentage of nose truncation increased. The results indicate that truncated projectiles maybe preferred over tip-flattening conical projectiles due to relative improvement in ballisticperformance and provision for easy introduction of the desired degree of bluntness for useas KE projectiles in suitable applications.
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