Oblique shock wave calculations for detonation waves in brass confined and bare PBXN-111 cylindrical charges

Journal Article · Wed Jul 01 04:00:00 EDT 1998 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.55655· OSTI ID:295471

Lemar, E R ^[1]; Forbes, J W ^[2]; Cowperthwaite, M ^[3]

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1. Naval Surface Warfare Center, Indian Head Division, Indian Head, Maryland 20640 (United States)
2. Lawrence Livermore National Laboratory, Livermore, California 94550 (United States)
3. Enig Associates, Inc., Silver Spring, Maryland 20904 (United States)

Shock polar theory is used to calculate the angles detonation fronts make with the cylinder wall for brass cased and bare PBXN-111 cylinders. Two extrapolated unreacted PBXN-111 Hugoniot curves are used to calculate these angles. Measured and calculated angles for bare PBXN-111 cylinders are in good agreement for one of the unreacted PBXN-111 Hugoniots. Except for the 100 mm diameter charge, the differences between calculated and measured angles for brass cased charges are beyond experimental error. Limited data suggests that the wave front curvature exhibits a large change right at the brass wall and the resolution in the experiments may not be fine enough to show it clearly. {copyright} {ital 1998 American Institute of Physics.}

• Sponsoring Organization: USDOE
• OSTI ID: 295471
• Report Number(s): CONF-970707--
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 429; ISSN 0094-243X; ISSN APCPCS
• Country of Publication: United States
• Language: English

Related Subjects

45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE
BOUNDARY CONDITIONS
BRASS
CHEMICAL EXPLOSIVES
CYLINDRICAL CONFIGURATION
DETONATION WAVES
EXPLOSIONS
INCIDENCE ANGLE