Ballistic resistant composite articles having improved resistance to backface deformation. The composite articles incorporate one or more vacuum panels that mitigate or eliminate shock wave energy resulting from a projectile impact to minimize transient compression of materials behind the armor.
1. A ballistic resistant article comprising: a) a vacuum panel having first and second surfaces, said vacuum panel comprising an enclosure and an interior volume defined by the enclosure, wherein at least a portion of said interior volume is unoccupied space and wherein said interior volume is under vacuum pressure; andb) at least one ballistic resistant substrate directly coupled with at least one of said first and second surfaces of said vacuum panel, said substrate comprising fibers and/or tapes having a tenacity of about 7 g/denier or more and a tens...
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