Importance

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Abstract

A composite material for mitigating blast shockwave energy, comprising a rubber compound layer impregnated with a shear thickening fluid. The layered composite material comprises a first layer of soft foam, a second layer of hard foam, a third layer of thermoset or thermoplastic compound, and a fourth layer of the rubber compound. The layered composite material does not comprise any fibers or yarns. The layers are bound together and have a total height of less than 0.85 inches. It attenuates up to 80% of an incident blast shockwave impulse and up to 61% of an incident blast shockwave pressure for an incident blast shockwave of 50 psi. A helmet liner made of the layered composite material and capable of fitting a helmet such there are no gaps between the user's head and the helmet during use. The helmet liner may be a flat headband that folds into a helmet's edges.

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First Claim