[China Glass Net] Bulletproof glass is actually a special laminated glass. It is not penetrated and damaged after high-speed high-pressure shooting of bullets. The factors affecting the performance of bulletproof glass include the type, thickness, number of layers, treatment methods, Size, mounting method, bullet type (lead core or steel core). According to the bulletproof theory, the ballistic resistance is mainly related to the hardness and toughness of the material, and is not directly related to the strength. Under the same test conditions, the performance of bulletproof glass made of polycarbonate sheet is far superior to other materials. The anti-elasticity of tempered glass is better than that of ordinary annealed glass. For bulletproof glass made of the same material, the thicker the thickness, the anti-ballistic performance of glass. The better, the increase in material pressure capacity is exponentially related to thickness.
Generally, the total thickness of bulletproof glass should be more than 20mm, and the total thickness of the bulletproof glass should be more than 50mm. The combination also has an effect on the performance of the bulletproof glass. For the PVB sandwich bulletproof glass, the arrangement of the elastic glass of the shrapnel is gradually reduced from the impact surface to the thickness of the elastic surface, that is, when the structure is arranged by the power reduction, the bulletproof capability is increased, especially the thinner the glass of the latter layer. The less the spatter, the better the bulletproof effect. When the organic plate and the inorganic glass are combined, the larger the proportion of the organic plate, the stronger the ballistic resistance. When used, but the larger the size of the bulletproof glass, the greater the elastic deformation of the glass when it is subjected to impact, the more the absorbed impact energy is converted into the elastic potential energy, and the stronger the ballistic resistance. In addition, the installation of bulletproof glass also affects the bulletproof effect. If the glass is rigidly fixed, the elastic deformation of the glass is limited when subjected to an impact, thereby reducing the ballistic resistance.
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