When we play the "Peace Elite" game, we most hope to find the third-level head and the third-level armor to ensure that the damage can be less when I am shot. The third-level head and the third-level armor in the game can indeed be Increase your attack strength, what about in reality? What is the bulletproof mechanism of bulletproof vests and bulletproof helmets?
There are basically two bulletproof mechanisms for bulletproof vests and bulletproof helmets:
One is to bounce off the fragments formed by the fragmentation of the projectile;
The second is to dissipate the kinetic energy of the warhead through bulletproof materials.
Hard bulletproof vests and steel bulletproof helmets are bulletproof by deflecting the warhead or shrapnel or breaking the bullet to consume its energy to synthesize it.
A soft bulletproof vest and light bulletproof helmet, its bulletproof mechanism is to use fabric made of high-strength fiber as raw material to "grab" bullets or shrapnel to achieve the bulletproof purpose.
There are five ways that soft bulletproof vests absorb energy:
(1) Deformation of the fabric: including the deformation of the incident direction of the bullet and the tensile deformation of the area near the incident point;
(2) Destruction of fabrics: including fiber fibrillation, fiber breakage, the collapse of yarn structure, and collapse of fabric structure;
(3) Thermal energy: energy is distributed in the form of thermal energy through friction;
(4) Sound energy: the energy consumed by the sound of the bullet after hitting the bulletproof layer;
(5) Deformation of the projectile.
The composite body armor is based on soft body armor, and a high-strength PE bulletproof plate or ceramic plate is added to the chest and back to achieve higher bulletproof performance. Its bulletproof mechanism can be summed up as "soft and hard".
When the bullet hits the bulletproof vest, the first thing that acts on it is the hard bulletproof material such as high-strength PE board or reinforced ceramic material or steel plate. During the contact process, both the bullet and the hard bulletproof material may deform or break, consuming most of the bullet's energy.
The high-strength fiber fabric acts as the liner and the second line of defense of the bulletproof vest, absorbs and diffuses the energy of the remaining part of the bullet, and acts as a buffer, thereby reducing non-penetrating damage as much as possible. In the two bulletproof processes, the previous one played a major role in energy absorption, which greatly reduced the penetration force of the projectile and was the key to bulletproofing.
