ACOUSTIC CRYSTAL EXPLOSIVES

An acoustic crystal explosive, which gains its properties from both its periodic structure and its composition, may be configured to suppress or enhance the sensitivity of detonation of the explosive in response to an acoustic wave. An explosive material and a medium (explosive or inactive) are arra...

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Bibliographic Details
Main Authors OWENS WILLIAM R, MOORE KENNETH L, BARKER DELMAR L
Format Patent
LanguageEnglish
Published 12.01.2012
Subjects
AMMUNITION
BLASTING
CHEMICAL LIGHTERS
CHEMISTRY
DETONATING OR PRIMING DEVICES
EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
EXPLOSIVES
EXPLOSIVES OR THERMIC COMPOSITIONS
FUSES
HEATING
LIGHTING
MANUFACTURE THEREOF
MATCHES
MECHANICAL ENGINEERING
METALLURGY
PYROPHORIC COMPOSITIONS
USE OF SINGLE SUBSTANCES AS EXPLOSIVES
WEAPONS
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Summary:An acoustic crystal explosive, which gains its properties from both its periodic structure and its composition, may be configured to suppress or enhance the sensitivity of detonation of the explosive in response to an acoustic wave. An explosive material and a medium (explosive or inactive) are arranged in a periodic array that provides local contrast modulation of the acoustic index to define a band gap in the acoustic transmission spectrum of the explosive materials. At least one defect cavity in the periodic array creates a resonance in the band gap. The defect cavity concentrates energy from an incident acoustic (shock) wave to detonate the explosive. Multiple defect cavities may be configured to provide a desired shaped charge or volumetric detonations. Means may be provided to reprogram the defect cavity(ies) to reconfigure the explosive.
Bibliography:Application Number: US20090473275