Body armor is used to protect the body from bullet or shrapnel.
The anti-stabbing vest has the functions of anti-cutting, anti-cutting, anti-stabbing, anti-scratching of angular objects, anti-wear, anti-theft and so on.
Body armor,also known as bullet-proof vest,ballistic vest,bulletproof body vest, bullet-proof suit, individual soldier protective equipment, etc., used to protect the bullet or shrapnel damage to the human body. Body armor is mainly composed of two parts: a jacket and a bulletproof layer. Clothing covers are often made of chemical fiber fabrics. Bulletproof layer is made of metal (special steel, aluminum alloy, titanium alloy), ceramic sheet (corundum, boron carbide, silicon carbide, alumina), glass steel, nylon (PA), KEVLAR (KEVLAR), ultra-high molecular weight polyethylene fiber, liquid protective materials and other materials, to form a single or composite protective structure. The bullet-proof layer can absorb the kinetic energy of the warhead or shrapnel, and has obvious protective effect on the low-speed warhead or shrapnel, and can reduce the damage to the human chest and abdomen under the condition of controlling a certain depression. Body armor includes infantry body armor, flight personnel body armor and artillery body armor. According to the appearance can also be divided into bulletproof vests, full protective body armor, women's body armor and other types.
Anti-stabbing clothing is also known as anti-knife clothing, anti-blade clothing or anti-edge clothing, with anti-knife cutting, anti-knife cutting, anti-knife stabbing, anti-scratching with angular objects, wear resistance, anti-theft and other functions. When wearing anti-knife clothes, if it is worn or cut, cut, cut, scratch, scratch, scratch, scratch, scratch, scratch, scratch, cut when wearing can protect the wearer from cuts, scratches, scratches, cuts, suitable for public security, armed police, military, security, drivers, glass processing and other practitioners or the elderly, children, primary and secondary school students in the danger of being cut.
A stab-proof vest or vest is a reinforced body armor worn under or over other clothing to protect against knife thrusts in the chest, back, and sides. Stab-proof vests are different from bullet-proof vests, most bullet-proof vests can defend against gunfire, but have little effect on stabbing sharp objects such as knives; Most stab-resistant vests offer weak protection against bullets, especially large-caliber bullets, but are designed to prevent a knife from penetrating more than a few millimeters, thereby preventing serious injury. The stab-proof vest also has the function of preventing needling and cutting.
Body armor is used to protect the body from bullet or shrapnel.
function
The main difference between bulletproof vests and stab-proof vests is that the functional protection objects are different, the former is mainly used for the protection of bullets, while the latter is mainly used for the protection of knives and sharp-edged instruments. Bulletproof vests and stab-proof vests protect different objects, so the principle and structure used in their design are also different, so the two can not be mixed.
materials
Ordinary body armor is made of Kevlar material, when the bullet hits the body armor, the strong toughness of Kevlar fiber will transfer the kinetic energy of the bullet to the entire body armor, so that you can achieve the effect of bulletproof. In other words, the principle of body armor is actually to share the kinetic energy of the bullet to each Kevlar fiber, so after one shot, the body armor is completely scrapped. But the tool is produced by the shear stress, the direction of the force is perpendicular to the fiber material, and the energy density of the knife tip is much higher than the warhead, people who have learned the material know that the fiber material is the worst resistance to the vertical shear stress, and even can say that there is no effect, so for the tool, body armor had to look at it.
compilation method
Because the impact of high-speed bullets on body armor is different from the mechanism of slashing and impact of sharp weapons, the energy dispersion of the former is mainly dispersed or consumed through the deformation of the warhead, fiber fracture and the propagation of the shock wave, while the puncture of the knife on body armor is mainly based on the shear principle, and the energy dispersion range is relatively narrow, especially the bayonet with a sharp head is more difficult to prevent. Therefore, the body armor is composed of high-strength fibers in accordance with specific rules, and the anti-stabbing clothing is composed of fibers and mixed steel wires.
