Metal foam stops .50 caliber rounds as well as steel – at less than half the weight

Phys.org  June 5, 2019
A team of researchers in the US (North Carolina State university, U.S. Army) investigated the effectiveness of the Composite Meta Foam (CMF) hard armor armor system consisting of a ceramic faceplate, a CMF core and a thin back plate made of aluminum. The armor was tested using .50 caliber ball and armor-piercing round with the rounds being fired at impact velocities from 500 meters per second up to 885 meters per second. The CMF layer was able to absorb 72-75% of the kinetic energy of the ball rounds, and 68-78% of the kinetic energy of the armor-piercing rounds. The CMF armor was less than half the weight of the rolled homogeneous steel armor needed to achieve the same level of protection. The new armor offers a much needed weight savings without sacrificing protection…read moreVideoTECHNICAL ARTICLE 

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