What are the Differences Between Stab-proof Vests and Bulletproof Vests

11 Feb.,2025

Ordinary bulletproof vests are made of UHMWPE fiber or Kevlar material. When the bullet hits the bulletproof vest, the Kevlar fiber with strong toughness transfers the kinetic energy of the bullet to the entire bulletproof vest, thereby achieving the effect of bulletproof. That is to say, the principle of a bulletproof vest is actually to distribute the impact kinetic energy of the warhead to each

 

What are the Differences Between Stab-proof Vests and Bulletproof Vests


Ordinary bulletproof vests are made of UHMWPE fiber or Kevlar material. When the bullet hits the bulletproof vest, the Kevlar fiber with strong toughness transfers the kinetic energy of the bullet to the entire bulletproof vest, thereby achieving the effect of bulletproof. That is to say, the principle of a bulletproof vest is actually to distribute the impact kinetic energy of the warhead to each Kevlar fiber, so a bullet in the bulletproof vest will be scrapped.

 

Polythene will be melted by friction of bullet rotation and stick to the bullets Once the bullets are stopped, it will quickly cool and re hard When a plate is hit, the bullet first contacts the ceramic material It ultra high strength can completely resist the enormous bullet energy and immediately shadow the bullet, reducing the kinetic energy of individual bullets At the same time, the ceramic will also consult most of the bullet's energy by cracking The back plate made of PE is able to capture these fragments This soft bulletproof vest will bear the worst energy for best bulletproof protection to human body.


However, the shear stress generated by the cutting machine is perpendicular to the fiber material, and the energy density of the blade tip is much higher than that of the bullet. Fiber materials have poor resistance to vertical shear stress.


Good stab-proof vest is protected by the principle of "soft defeats hard, hard and soft". It not only focuses on protective performance, but also on comfortable wearing. The flexible anti piercing materials developed for armor protection adhere to this concept, and the anti piercing clothing developed focuses more on the wearing performance of the human body.


The main difference between bulletproof vests and stab-proof vests is the different objects of protection. The former is mainly used to protect bullets, while the latter is mainly used to protect knives and sharp edged tools. Bulletproof vests and stab proof vests have different protection objects, and their design principles and structures are also different, so they cannot be mixed.


Bulletproof vests are generally used for military purposes, and special police officers need to wear such protective equipment when on duty. Bullets, high-speed fragments of various explosives such as bombs, landmines, shells, and hand grenades are one of the main threats on the battlefield. The order of threats that soldiers face on the battlefield is grenades, bullets, explosive shock waves, and high temperatures. Therefore, the role of bulletproof plates has been given attention.


Secondly, in order to prevent non penetrating damage, bullets will generate a significant impact force upon hitting the target. The impact on the human body is often fatal. This type of injury does not manifest as penetration, but can cause internal injury, and in severe cases, it can be life-threatening. Therefore, preventing non penetrating damage is also an important aspect of reflecting and experiencing the bulletproof performance of bulletproof clothing.


The performance requirements of bulletproof vests mean that, on the one hand, they should be as lightweight as possible without affecting their bulletproof performance, and they should also be able to complete various movements more flexibly. In addition, due to its special usage environment, bulletproof vests should also consider compatibility with other weapons and equipment.

 

What are the Differences Between Stab-proof Vests and Bulletproof Vests