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It also gives specifications for additional Stichschutz (ST), protection against knives, using the same classes as the ballistic protection, but giving it the additional ST label (e.g. SK L ST). The ballistic tests to determine a class are now integrated into the VPAM guidelines, so that the tests differ just in minor details and only one test ...
Kevlar (para-aramid) [2] is a strong, heat-resistant synthetic fiber, related to other aramids such as Nomex and Technora.Developed by Stephanie Kwolek at DuPont in 1965, [3] [2] [4] the high-strength material was first used commercially in the early 1970s as a replacement for steel in racing tires.
The cut protection is provided by high performance materials such as para-aramid (Twaron, Kevlar), high performance polyethylene (HPPE) (Dyneema, Spectra), special polyvinyl acetate (PVA) yarns (SupraBlock) or steel wire and fiberglass yarns. Knitting machines are commonly classified using gauge, and can range from 7 gauge all the way through ...
These experiments visually showed that liquid armor has ballistic properties that are greater than neat fabrics. It was displayed that only four layers of STF-Kevlar offer the same amount of protection that ten layers of standard Kevlar offers. Additionally, it was discovered that STF-Kevlar has little to no increase in thickness and stiffness.
Nearly all modern military body armor is designed to prevent penetration from bullets to vital areas of the body, in addition to protection against knives and fragmentation from explosives. Typically this is accomplished through both highly durable woven synthetic fibers such as Kevlar or Dyneema, and either metal or ceramic ballistic plates ...
The fiber is an evolution of the original Kevlar fiber. The following quotes summarize Kevlar KM2's properties. "DuPont created Kevlar KM2 to achieve the performance goals defined by casualty reduction testing for the United States Department of Defense. Today it is used extensively for fragmentation protection in the U.S. military. Helmets and ...
This performance is only assured when backed by the soft armor of the OTV (or any soft armor which meets military requirements for protection). The ceramic plate is backed with a shield made of Spectra , a material up to 40% stronger than Kevlar , [ 1 ] to trap any fragments of either plate or projectile and prevent them from injuring the wearer.
A stab vest or stab proof vest is a reinforced piece of body armor, worn under or over other items of clothing, which is designed to resist knife attacks to the chest, back and sides. Stab vests are different from bulletproof vests , which offer protection against firearms but are ineffective against stabbing attacks.