US12504261 - Explosive fragmentation structure with a fragment enhancing insensitive munitions (IM) liner

The patent describes an explosive fragmentation structure featuring an insensitive munitions (IM) liner that enhances fragmentation upon detonation. This liner, made of a patterned metal structure embedded in a compressible material, ensures no air gaps and defines a specific fragmentation pattern for the outer metal casing.

Claim 1

1 . An explosive fragmentation structure, comprising: an outer metal casing having an inner surface defining a chamber; an explosive positioned inside the chamber, said explosive having an outer surface with a complementary shape to the inner surface of the outer metal casing; and an insensitive munitions (IM) liner positioned between and in conformal contact with the outer metal casing’s inner surface and the explosive’s outer surface, said IM liner including a patterned metal structure having openings formed therethrough embedded in a compressible material such that the IM liner is devoid of any air gaps, said IM liner defining a desired fragmentation pattern of the outer metal casing upon detonation of the explosive. an outer metal casing having an inner surface defining a chamber; an explosive positioned inside the chamber, said explosive having an outer surface with a complementary shape to the inner surface of the outer metal casing; and an insensitive munitions (IM) liner positioned between and in conformal contact with the outer metal casing’s inner surface and the explosive’s outer surface, said IM liner including a patterned metal structure having openings formed therethrough embedded in a compressible material such that the IM liner is devoid of any air gaps, said IM liner defining a desired fragmentation pattern of the outer metal casing upon detonation of the explosive.

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USPTO PDF

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