What+are+bullet+proof+vests+made+of,+and+how+do+they+work?

__**WHAT ARE BULLET PROOF VESTS MADE OF, AND HOW DO THEY WORK?**__

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Christian Besoiu 8.4

Bulletproof vests are mainly made up of a material called Kevlar. The reason they use Kevlar in bulletproof vests is because the fibers in Kevlar are tightly woven and very strong. Kevlar is one of the few materials on earth that bends but is still very strong. What Kevlar does when a bullet hits it is it bends and dissipates the kinetic energy coming from the bullet around the entire vest and not in the one place where the bullet was shot at. This is what really makes a bulletproof vest bullet proof. If you think about it a bullet is just like a car it can’t stop suddenly it stop gradually, same with a bullet and the Kevlar can absorb the energy.

Info from:

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By: ** Richard M. J. Renneboog **

__Additional Responses:__

Bulletproof vests are typically made of Kevlar, which is a material as light as cloth, but five times stronger than a piece of steel that is the same wright. The Kevlar is tightly woven and covered by resin and a thin layer of plastic. Different types of bulletproof vests work differently, all of the vests use the material to spread out the blunt force impact all over the vest oppose the one spot. This greatly slows the bullet down and deforms the bullet. In the case of soft vests depending, depending on the thickness the bullet is either stopped inside the vest or still strikes the skin with only enough force to bruise or cause slight internal damage. When a hard case is added to the vest the bullet can be deflected once it passes through the Kevlar outsides.

By Logan Wlad 8.4

http://www.tech-faq.com/how-do-bullet-proof-vests-work.html

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