Trajectory deflection of noncircular cross-section projectile penetrating into metal targets

Abstract To analyze the trajectory deflection of a noncircular cross-section projectile penetrating into multiple metal targets, numerical simulations with different impact velocities, tip height and charge geometry are conducted. The simulation model is established using finite element software LS-DYNA verified based on experiment carried out by single-stage light gas gun. results show that velocity significantly affects projectile. Although deflections may be in direction, magnitudes exhibit decreasing trends increasing velocity. Besides, varies from downward to upward increase height, changes ranging 0.8mm 1.1mm. Further, as profile remains unchanged, ones better ballistic stability compared circular This mainly related variation mass instead moment inertia.