An analytic expression for P/L for WA long rods into armor steel

Analytical expressions for normalized penetration of tungsten alloy long rods into semi-infinite armor steel as a function of impact velocity have been analyzed. Adjustable parameters were determined by least-squares regression to experimental data for impact velocities from ∼0.4 km/s to ∼4.5 km/s. Further work has been performed to generalize the procedure to account for target hardness and projectile aspect ratio.