| 摘要 |
PURPOSE: A fragmentation assembly and a target-practice projectile with the same are provided to fragment a filler to be fragmented to small pieces and to scatter the fragments only within short distances because the internal pressure and impact energy of the filler to be fragmented are maximized over the fragmentation threshold of the filler to be fragmented. CONSTITUTION: A fragmentation assembly (10) comprises a filler (12) to be fragmented and a plastic pressure-resistant case (14). The filler to be fragmented is applied to a projectile body flying by the explosive force of a propellant charge and is fragmented by impact energy generated when the projectile body collides with a target. The plastic pressure-resistant case increases the internal pressure of the filler to be fragmented while concentrating the impact energy, generated when the projectile body collides with the target, on the inside of the filler to be fragmented. Accordingly, the filler is fragmented to smaller pieces. |
