Armor plate with shock wave absorbing properties
First Claim
Patent Images
1. An armor plate comprising:
- a ceramic layer; and
a fracture layer secured to the ceramic layer, the fracture layer comprising a fracture material that when subject to a shock wave pumps an acoustic spectral line having a frequency in a range from 100 MHz to 100 GHz, the fracture layer also comprising a plurality of resonators having a thickness and composition that reflects the wave at the frequency.
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Abstract
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.
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Citations
22 Claims
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1. An armor plate comprising:
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a ceramic layer; and a fracture layer secured to the ceramic layer, the fracture layer comprising a fracture material that when subject to a shock wave pumps an acoustic spectral line having a frequency in a range from 100 MHz to 100 GHz, the fracture layer also comprising a plurality of resonators having a thickness and composition that reflects the wave at the frequency. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification