Ordnance – Shields – Shape or composition
Patent
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.
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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.
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Article entitled Determination of Dynamic Fracture Parameters for HF-1 by Willis Mock, Jr. and William H. Holt published Apr. 14, 1982.
Morrow John D.
Musante Ronald E.
FMC Corporation
Johnson Stephen
Jordan Charles T.
Kamp R. C.
Megley R. B.
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