Simple blast model for structural design. [TATB-based explosive PBX 9502 and HMX-based PBX 9501]
Structures capable of either containing or surviving nearby detonating explosive are useful research tools for investigating properties of materials. Our particular interest is in spherical steel vessels that are only stressed elastically. Although there is a large amount of data describing blast waves in air, it is mostly for the farfield region R > 1 where R is the reduced radius - that is, the distance from the charge center divided by the cube root of the charge mass - expressed here in m/kg//sup 1///sup 3/. Our region of investigation was the range 0.3 < R < 0.7. For these distances the blast effect is mainly impulsive, and normally less than 1% of the explosive energy is coupled into kinetic energy of the vessel. The response of vessels to spherical charges of the HMX-based explosive PBX 9501 has been investigated both for vessels filled with ambient air and evacuated. A simple scaling model is used to correlate the data for various size vessels and to describe the impulse on structures. This model is then applied to one test of the TATB-based explosive PBX 9502. Finally, the immediate residual pressure in the vessels was measured to show the degree of short-term overpressure in evacuated structures. 1 ref., 2 figs., 3 tabs.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 5891425
- Report Number(s):
- LA-UR-85-3420; CONF-860616-3; ON: DE86000802
- Resource Relation:
- Conference: International symposium on intense dynamic loading and its effects, Beijing, China, 3 Jun 1986
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
CHEMICAL EXPLOSIVES
DETONATIONS
PRESSURE VESSELS
AIR
BLAST EFFECTS
STEELS
EXPERIMENTAL DATA
STRAINS
TATB
ALLOYS
CONTAINERS
DATA
EXPLOSIVES
FLUIDS
GASES
INFORMATION
IRON ALLOYS
IRON BASE ALLOYS
NUMERICAL DATA
450100* - Military Technology
Weaponry
& National Defense- Chemical Explosions & Explosives