USA As Represented by Secretary of the Navy

David L Knies

Alex E Moser

Kenneth S Grabowski

An armor system includes an armor plate, and an appliqu&#xe9; affixed to an exterior of the armor plate, wherein the appliqu&#xe9; has a density increasing in a direction towards the armor plate and configured to minimize reflection of a blast wave from the armor plate. The coupling system comprises a binder material that surrounds filler particles configured to create an impedance gradient parallel to the impulse propagation direction.

Preparation of impedance gradients for coupling impulses and shockwaves into solids

An armor system includes an armor plate, and an appliqu&#xe9; affixed to an exterior of the armor plate, wherein the appliqu&#xe9; has a density increasing in a direction towards the armor plate and configured to minimize reflection of a blast wave from the armor plate. Also disclosed are method of making such an armor system.

Material and process for coupling impulses and shockwaves into solids

An armor system includes a plate operably connected to a plunger, one or more solid bars of brittle material operably contained within a channel or tube, wherein the armor system is configured so that upon impact of a blast shock wave upon the plate, the plate transfers the blast shock wave to the plunger and then to the contents of the channel. Optionally, the channel also contains HFRM.

Shock transfer armor

An armor system includes an appliqu&#xe9; comprising a high fluid retaining material (HFRM) and a plate configured to hold the appliqu&#xe9; against a compartment, wherein the armor system is adapted so that upon impact of a blast wave upon the plate, the HFRM is vented away from the compartment. The armor system may be adapted to a vehicle. In another embodiment, an armor system includes a plate operably connected to a plunger, one or more rods of brittle material operably contained within a tube, wherein the armor system is adapted so that upon impact of a blast shock wave upon the plate, the plate transfers the blast shock wave to the plunger and then to the contents of the tube. Optionally, the tube also contains HFRM.

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Marbury, MD, United States of America

David L Knies