Engineers are developing new materials with the potential to offer unprecedented protection from bullets and crashes.
Take a new composite metal foam, that absorbs most of the kinetic energy of bullets or other projectiles.
Researchers with North Carolina State and the US Army Research, Development and Engineering Center have combined multiple bullet-stopping materials into a single piece of armor. With a thickness of just 25 millimeters, the armor consists of "ceramics as the strike face, composite metal foam processed by powder metallurgy technique as a bullet kinetic energy absorber interlayer, and aluminum 7075 or Kevlar™ panels as backplates," according to the 2015 study.
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