Bulletproof clothing refers to "can absorb and dissipate the warhead, chip kinetic energy, prevent penetration, effectively protect the human body protected parts of a garment." From the use of, bulletproof clothing can be divided between police and military type. From the material point of view, bulletproof clothing can be divided into soft, hard and hard complex three. The material of soft body armor is mainly based on high-performance textile fiber composite materials, these high-performance fibers are much higher than the energy absorption capacity of general materials, giving bulletproof clothing bullet-proof function, and because of the structure of this body armor generally uses textiles, and therefore has considerable softness, called soft body armor. Hard body body armor is to special steel plate, super aluminum alloy and other metal materials or alumina, silicon carbide and other hard non-metallic materials as the main bulletproof material, the resulting body armor generally does not have softness, to insert the form of the main.
The softness of the soft and soft composite body armor is between the two types mentioned above, it is lined with soft material, hard material as a panel and reinforcing material, is a composite body armor. As a protective object, the core performance of bulletproof clothing should first be bulletproof.
At the same time, as a functional clothing, it should also have a certain performance of clothing.
The bulletproof performance of body armor is mainly reflected in the following two aspects: (1) Bulletproof shrapnel: High-speed shrapnel produced by explosions such as bombs, mines, artillery shells and grenades is one of the main threats on the battlefield. According to the investigation, soldiers in a battlefield face a sequence of threats: shrapnel, bullets, blast shock waves and heat.
Therefore, the function of the bulletproof shrapto should be emphasized very much. (2) Anti-penetration damage: the bullet after hitting the target will produce a great impact, this impact on the human body produced damage is often fatal. This injury does not appear to be throughout, but can cause internal injuries and is life-threatening. Therefore, the prevention of non-permeable damage is also an important aspect of the embodiment and inspection of bulletproof body armor bullet-proof performance.