Abstract
The impact of a ogive‐nosed steel projectile into thick sandstone and steel targets has been simulated over impact velocities from 200 m/s to 750 m/s, and the projectile deceleration histories compared. Both targets have an entrance phase in which deceleration increases sharply. This phase is followed in a steel target by a steady deceleration phase. In sandstone, however, a double‐peak structure is seen in the 300–550 m/s range. This is similar to the double peak that was observed in a reported rock penetration experiment at 520 m/s. These studies are aimed at determination of material‐specific parameters related to dynamic strength and fracture properties.
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