How ballistic plates work?

Principle of ballistic plates is that when the bullet strikes the bulletproof insert plate, the bullet firstly strikes the uppermost ceramic layer. The ceramic breaks when it encounters the bullet with huge kinetic energy, and it will transfer the huge impact energy at the impact point to the surrounding to absorb the huge kinetic energy of the bullet.

When the bullet passes through the ceramic layer, it has lost most of its kinetic energy. When the bullet reaches the polyethylene layer, the polyethylene consumes the bullet kinetic energy by stretching and wraps the warhead and shrapnel. This process has little impact on the human body and plays a good protective role.