Active spall suppression armor

Details Active spall suppression armor Active spall suppression armor

1987-09-18

1990-06-19

Jordan, Charles T.

Ordnance

Shields

Shape or composition

428911, 428328, F41H 504

Patent

active

049342452

ABSTRACT:
A spall backing material contiguously attached to an armor plate at least suppresses the formation of lethal armor spall from being propelled from the inner surface of the armor plate when the outer surface of the armor is impacted by a weapon with sufficient impact to release high velocity spall from unprotected armor. When the impedance of the spall suppression armor is equal to or greater than the impedance of the armor plate, the formation of lethal spall in the armor will be prevented. When the spall backing material is reduced in thickness to minimize weight and has an impedance lower than that of the armor plate, or a more powerful weapon is used, armor spallation will occur but will be suppressed by the spall backing material to minimize lethality.

REFERENCES:
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Rugger et al., Kirk-Othmer Encyclopedia Chemical Technology, 1971, pp. 138-157.
Mayseless et al., Journal of Applied Mechanics, 1987, pp. 373-378.
An article entitled Porosity and Spall Fracture of Shock Loaded Metals, by Corly M. Glass et al.
Article entitled Porosity and Spall Fractures of Shock Loaded Metals, Coy N. Glass, Victor A. Greenhut and Pricilla W. Kingman date stamped 1976.
Article entitled Shock Effects on Interfaces prepared by U.S. Army Mobility Equipment Research Department Command.
Article entitled Determination of Dynamic Fracture Parameters for HF-1 by Willis Mock, Jr. and William H. Holt published Apr. 14, 1982.

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