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Composite Armor and Methods for Making Composite Armor

Battelle Memorial Institute

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Publications:

PDF Document PublicationPatent Application (183 KB)

Technology Marketing SummaryThe present invention relates, in general, to a composite armor and a process for forming a composite armor. Composite armor containing ceramics and high strength fibers have been useful to provide protection against ballistic projectiles. Typical existing armor for vehicles uses rigid plates of steel. However, they have the disadvantage of being very heavy. Ceramic containing armor systems have demonstrated great promise as reduced weight armors. These armor systems function efficiently by shattering the hard core of a projectile during impact on the ceramic material. The lower velocity bullet and ceramic fragments produce an impact, over such a large "footprint", on a backing plate which supports the ceramic plates. The large footprint enables the backing plate to absorb the incident kinetic energy without being breached.Description

A composite armor panel and the method for making the armor are disclosed. In one embodiment the armor consists of a plurality of ceramic tiles individually edge-wrapped with fiber or edge-wrap fabric, which are further wrapped with a face-wrap fabric, and encapsulated in a hyper elastic polymer material permeating the fabric and fibers, with a back plate adhered to the encapsulated tiles. In one embodiment the hyper elastic polymer is formed from a MDI-polyester or polyether pre-polymer, at least one long-chain polyester polyol comprising ethylene/butylene adipate diol, at least one short-chain diol comprising 1,4-butanediol, and a tin-based catalyst.

Benefits
  • Readily-available, low-cost materials
  • Simple, high-volume manufacturing process
  • Unique multi-hit protection scheme
Applications and Industries
  • Armor
  • Energy absorbing applications – including protection from impacts, fragmentation, etc.
Patents and Patent Applications
ID Number
Title and Abstract
Primary Lab
Date
Application 20100043630
Application
20100043630
Composite Armor and Method for Making Composite Armor
A composite armor panel and a method for making the armor is disclosed. In one embodiment the armor consists of a plurality of ceramic tiles (21) individually edge-wrapped (52) with fiber or edge-wrap fabric, which are further wrapped with a face-wrap fabric, and encapsulated in a hyperelastic polymer material (31) permeating the fabric and fibers, with a back plate (41) adhered to the encapsulated tiles. In one embodiment the hyperelastic polymer (31) is formed from a MDI-polyester or polyether prepolymer, at lease one long-chain polyester polyol comprising ethylene/butylene adipate diol, at least one short-chain diol comprising 1,4-butanediol, and a tin-based catalyst.
12/04/2007
Filed
Technology Status
Development StageAvailabilityPublishedLast Updated
ProductionAvailable03/13/201203/13/2012

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