Thursday, July 31, 2014 9:47:45 AM
Recent helmets are proof against a direct hit from relatively small caliber arms and glancing hits from larger caliber projectiles such as those fired by heavy machine guns (exact numbers are classified).
Direct hits from large caliber arms will penetrate the helmet.
The helmets could be made stronger to resist such direct hits but two factors prevent this.
A) total helmet weight.
B) a direct large caliber impact carries enough energy that even if it did not penetrate the helmet, the impact energy transferred to the helmet and then to the head would be sufficient to kill via concussion.
Better penetration resistance without too much added weight can be achieved by the use of advanced composites such as MS or BR reinforced materials.
To protect against concussion the energy transferred must be spread over a longer time interval as well as a wider area.
The Web support structures envisioned in this patent might be able to accomplish this.
Mike L.
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