Patent ID: 9394959
Filing Date: 2016-07-19
CPC Classification: A41D,A42B,C08J,C08K,C08L,F16F,F41H

Claim Text:
1. A composite material for protection of an object from a load, comprising: a matrix material including at least three sizes of stress-concentrating features, including: a plurality of first features having a first average characteristic dimension of between about ten microns and about two hundred microns; a plurality of second features having a second average characteristic dimension that is at least about one order of magnitude larger than said first average characteristic dimension; and a plurality of third features having a third average characteristic dimension that is at least about one order of magnitude larger than said second average characteristic dimension; wherein the material proximate to said first, second, and third features progressively buckles upon application of the load, such that material proximate said third features tends to deform before the deformation of material proximate to said second and first features, and material proximate said first features tends to deform after the deformation of material proximate to said second and third features.