Resistance of composite tank structures to the hydraulic ram generated by the impact and penetration of a ballistic proiectile

摘要

This workis part of the European EUCLID RTP3.32 program, whose purpose is to limit the vulnerability of composite tank structures on aircraft to sniper shots, mainly during take-off (full tank). Indeed under certain circumstances a projectile can generate a catastrophic damage within a tank: the ? hydraulic ram ?.After traversing the entry wall of a tank caisson, the projectile finds in its path a space that is more or less full of liquid and internal walls. It is slowed down or even stopped by the fluid which reacts with a drag force that is a function of the kinematics, geometry and characteristics of the projectile and fluid. In this process, the kinetic energy of the ammunition is transferred to the liquid near the trajectory. Either the