A shock initiation model for fine-grained hexanitrostilbene

Conference · Sun Jan 01 00:00:00 EST 1989

OSTI ID:5860440

Kipp, M E; Setchell, R E

An established body of data indicates that very fine-grained hexanitrostilbene (HNS), when pressed to 92% of crystal density, exhibits shock initiation characteristics unlike those typical of porous, granular explosives. That is, a progressive buildup towards detonation from an initial shock by hot spot formation and growth processes is not observed. Instead, this particular HNS exhibits shock initiation characteristics normally associated with homogeneous explosives (e.g., the formation of a superdetonation wave after an initial shock has been introduced). In the present work, a comprehensive effort has been made to develop a predictive model for shock initiation in this material. This model is based on a theory of homogeneous reactive mixtures, and includes a refined equation of state for porous HNS reactant and a JWL equation of state for gaseous reaction products. The model has been incorporated into wave propagation codes, and comparisons with available initiation data are made. 22 refs., 8 figs.

• Research Organization: Sandia National Labs., Albuquerque, NM (USA)
• DOE Contract Number: AC04-76DP00789
• OSTI ID: 5860440
• Report Number(s): SAND-88-2385C; CONF-890811-5; ON: DE89007641
• Resource Relation: Conference: 9. international symposium on detonation, Portland, OR, USA, 28 Aug - 1 Sep 1989; Other Information: Portions of this document are illegible in microfiche products
• Country of Publication: United States
• Language: English

Related Subjects

45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
DETONATIONS
MATHEMATICAL MODELS
NITRO COMPOUNDS
A CODES
ALUMINIUM
CHEMICAL REACTION KINETICS
CONFINEMENT
EQUATIONS OF STATE
GRAIN SIZE
PMMA
POROSITY
SHOCK WAVES
STILBENE
THERMODYNAMICS
AROMATICS
COMPUTER CODES
CRYSTAL STRUCTURE
ELEMENTS
EQUATIONS
ESTERS
HYDROCARBONS
KINETICS
METALS
MICROSTRUCTURE
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC POLYMERS
POLYACRYLATES
POLYMERS
POLYVINYLS
REACTION KINETICS
SIZE
450100* - Military Technology
Weaponry
& National Defense- Chemical Explosions & Explosives
990230 - Mathematics & Mathematical Models- (1987-1989)
990220 - Computers
Computerized Models
& Computer Programs- (1987-1989)