Abstract
Summary A combined computational, analytical and experimental investigation has discovered that there is a limit to the penetration efficiency of kinetic energy penetrators as the length-to-diameter ratio ( LID ) is decreased. Impacts of penetrators with an LID ranging from 1 to 1/32 into rolled homogeneous armor (RHA) at 2km/s were modelled with the Lagrangian code SMASH, the Eulerian code CTH, and elementary wave mechanics. Results were verified with experiments performed using a 50mm high pressure powder gun and a push-launch sabot. The modelling exhibited good agreement with experimental data and provided significant insight into the transient behavior of low LID penetrator impacts.
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