Tungsten Alloy EFP Projectile Flight Trajectory Model

Tungsten alloy is adopted as projectile for EFP (Explosively Formed Penetrator) with its high density, high intensity and high ductility. Terminal sensing submunition can detect and distinguish targets in scanning area. When scanning trajectory of terminal sensing submunition scans the target in scanning area, the computer on the penetrator detonates warhead of EFP duly, forming explosive compacting tungsten alloy EFP projectile and attacks armor vehicles from top. Tungsten alloy EFP projectile flight trajectory is the trajectory that EFP projectile flies to the target.

Tungsten alloy EFP projectile is influenced by gravity and air resistance during flying. Gravity bends tungsten alloy EFP projectile flight trajectory and air resistance decreases the flight speed of tungsten alloy EFP projectile. High density of tungsten alloy can weaken the influence on projectile caused by gravity and air resistance. High density means higher density of energy and greater impact force, improving penetrating power. High ductility contributes to forming longer projectile so that highly increasing the depth of penetration. Because the flight speed of EFP is faster than sound velocity by 5~6times, the distance from detonating to target is no more than caliber by 1000 times. For that, the influence on EFP flight trajectory by gravity can be neglected. So tungsten alloy EFP projectile flight trajectory can be considered as straight line trajectory approximately and also can be described by using equation of motion for particle. 



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