Accession Number : ADD018413

Title :   High-Energy-Absorbing Enclosure for Internal Explosion Containment.

Descriptive Note : Patent Application, Filed 15 Jun 95,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Crane, Roger M ; Coffin, Paul A

PDF Url : ADD018413

Report Date : 15 Jun 1995

Pagination or Media Count : 36

Abstract : A structural enclosure, box-like for many embodiments, which effectively contains an explosion, thereupon remaining virtually intact and minimizing fragmentation. The Structural wall has a Sandwich-like arrangement of two fiber-reinforced matrix material skins and a foam core situated between the two skins, at least one skin having fiber-reinforced high strain-to-failure viscoelastic matrix material. The core foam material selectively varies in density so as to provide appropriate rigidity or flexibility at different locations of the structural enclosure. The fiber-reinforced high Strain-to-failure viscoelastic matrix material can be deformed elastically to large strains, has demonstrably high energy-absorbing characteristics, and is relatively lightweight. Upon explosive impact, the inner skin largely deforms so as to be energy-absorbent of the pressure wave caused by the explosive charge, the foam core crushes so as to also be energy-absorbent, the outer skin largely deforms, and both skins contain debris.

Descriptors :   *PATENT APPLICATIONS, *STRUCTURAL PROPERTIES, *EXPLOSIONS, *CONTAINMENT(GENERAL), *SANDWICH CONSTRUCTION, CORES, FRAGMENTATION, VISCOELASTICITY, FIBER REINFORCED COMPOSITES, MATRIX MATERIALS, HIGH ENERGY, LIGHTWEIGHT, WALLS, STRUCTURAL COMPONENTS, FOAM, ENERGY ABSORBERS

Subject Categories : Laminates and Composite Materials
      Safety Engineering
      Explosions

Distribution Statement : APPROVED FOR PUBLIC RELEASE