How are bulletproof vests made?

Bulletproof clothing is designed to protect the wearer from the impact of firearm bullets on his/her vital organs.

Bulletproof vests are made of many layers of tightly-woven high tensile strength fibres such as Dyneema and Kevlar. Kevlar is considered seven times stronger than steel, while Dyneema is 15 times stronger. These fibres are basically a type of plastic (polyethylene) with high tensile strength, owing to their tightly bound, parallel molecules. The layers are sealed together into a vest-shaped sheet or panel. This panel is inserted into carriers, ensuring they are held at proper positions on the wearer’s body. This carrier along with the panels constitutes bulletproof clothing.

So, what do these layers of fibre do? The layers of this tough material deform the incoming bullet, robbing it of its energy. They absorb the energy from the bullet, slowing it down through friction and bringing it to a stop. However, some layers may be penetrated. Hence, unlike the name suggests, a bulletproof vest is not truly bulletproof, but actually bullet resistant. It can prevent bullets penetrating the body; however, even after the bullet is stopped, the impact can sometimes injure the wearer.

There are different vests for different guns. Some higher level armours allow for metal plates, which provide extra protection.

 

Picture Credit : Google