The Army’s Enhanced Combat Helmet uses composite fibers developed from UHMWPE—high-performance, ultrahigh molecular weight polyethylene. The inset image, obtained using scanning electron microscopy, reveals a permanent indent from a test bullet on the surface of polycarbonate material, in contrast with polyurethane urea elastomer materials, where no damage was observed after impact. ( Army

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Keywords: &, america, armed, dasa, defence, ech, employee, federal, forces, government, helmet, military, protection, service, soldier, states, united, usa