Composite cored combat vehicle armor

Details Composite cored combat vehicle armor Composite cored combat vehicle armor

1980-03-31

1982-12-21

Bentley, Stephen C.

Ordnance

Shields

For ships

109 85, 428911, F41H 504

Patent

active

043643000

ABSTRACT:
A light weight armor for combat vehicles, having at least three laminations f which at least the two outermost have the same mass, but with all having significantly differing densities and thicknesses. This composite armor comprises an outer layer of relatively thin quenched and high density, tempered high-hardness alloy steel to induce projectile shatter, and being the layer which is directly exposed to ballistic attack; a unique second lamination or core of a relatively low-density, high-strength nonferrous material and having at least the same mass as but much greater thickness than the first lamination; and an inner (the third) lamination of high-toughness, quenched and tempered alloy steel of medium hardness for spall resistance, being of lesser hardness than the first lamination, but substantially greater hardness than the second lamination; the "sandwich" is preferably sealed with a closure of edge pieces of low-carbon, low-alloy steel for easy fabrication of this three layer assembly, the most critical element for optimum performance being the second nonferrous much lower density lamination or core which is of at least the same or greater mass as the first lamination. Exemplary thicknesses for the respective plates from outside to the inside are 1/2" , 1" and 1/4".

REFERENCES:
patent: 1007144 (1911-10-01), Schaumann
patent: 2438759 (1948-03-01), Liebowitz
patent: 3261724 (1966-07-01), Ulam
patent: 3473900 (1969-10-01), Sara
patent: 3516898 (1970-06-01), Cook
patent: 3699842 (1972-10-01), Grewing et al.
patent: 3969563 (1976-07-01), Hollis
patent: 4131053 (1978-12-01), Ferguson

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