Maryland's Defense Patent Database

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Armor plate with shock wave absorbing properties

Patent image
NRL

A composite armor plate includes a fracture layer placed adjacent to a ceramic layer. The ceramic layer provides a ballistic resistant layer that receives a ballistic impact and propagates a compression wave. The fracture layer is placed behind the ceramic layer and absorbs a portion of the compression wave propagating out in front of the ballistic impact. The absorbed compression wave causes the fracture layer to at least partially disintegrate into fine particles, which dissipates energy in the process. To cause a higher degree of fracturing (and thus larger dissipation of compression wave energy) the fracture layer includes a plurality of resonators embedded in a fracture material.

Inventors: 
Kucherov, Yan R.; Hubler, Graham K.; Johnson, Brant
Patent Number: 
Technical domain: 
Machines and Processing
FIle Date: 
2014-02-20
Grant Date: 
2016-09-06
Grant time: 
929 days
Grant time percentile rank: 
17
Claim count percentile rank: 
4
Citations percentile rank: 
1
'Cited by' percentile rank: 
1
Assignee: 
US NAVY