Patent ID: 8186262
Filing Date: 2012-05-29
Classification: B64D,B64G,F41H,Y02T,Y10T

Abstract:
1. A sandwich panel, comprising: at least two rigid face sheets; a core region formed between each of a pair of the at least two rigid face sheets; at least one layer of a fabric contained within each core region, said at least one fabric layer having an aggregate thickness selected to provide sufficient space within the core region to allow conformity by the fabric layer(s) to a projectile impacting thereon; and a plurality of pins extending through the at least one fabric layer within each core region and secured to the face sheets forming each core region such that the at least one fabric layer are held in place thereby, said pins comprising a sacrificial pin array of an optimally weak pin material within each core region such that one or more of elastic pin deformation, pin yielding, pin breakage or other pin failure occurs transversely along the at least one fabric layer away from a point of projectile impact; wherein a combination of pin number, pin spacing, pin material, and pin dimensions within the array defines a thermomechanical barrier along which through-thickness thermal conductivity changes from the point of projectile impact.