Shock Initiation of Energetic Materials at Different Initial Temperatures
Shock initiation is one of the most important properties of energetic materials, which must transition to detonation exactly as intended when intentionally shocked and not detonate when accidentally shocked. The development of manganin pressure gauges that are placed inside the explosive charge and record the buildup of pressure upon shock impact has greatly increased the knowledge of these reactive flows. This experimental data, together with similar data from electromagnetic particle velocity gauges, has allowed us to formulate the Ignition and Growth model of shock initiation and detonation in hydrodynamic computer codes for predictions of shock initiation scenarios that cannot be tested experimentally. An important problem in shock initiation of solid explosives is the change in sensitivity that occurs upon heating (or cooling). Experimental manganin pressure gauge records and the corresponding Ignition and Growth model calculations are presented for two solid explosives, LX-17 (92.5 % triaminotrinitrobenzene (TATB) with 7.5 % Kel-F binder) and LX-04 (85 % octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazine (HMX) with 15 % Viton binder) at several initial temperatures.
- Research Organization:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 883816
- Report Number(s):
- UCRL-JRNL-209079; TRN: US200615%%266
- Journal Information:
- Combustion, Explosions, and Shock Waves, Vol. 41, Issue 6
- Country of Publication:
- United States
- Language:
- English
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journal | October 1996 |
Pressure and particle velocity measurements in solids subjected to dynamic loading
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journal | January 1987 |
Shock Sensitivity of LX-04 Containing Delta Phase HMX at Elevated Temperatures
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conference | January 2004 |
Shock Initiation of UF-TATB at 250°C
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conference | January 2002 |
Manganin Gauge and Reactive Flow Modeling Study of the Shock Initiation of PBX 9501
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conference | January 2002 |
Initiation of Gaseous Detonation
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journal | October 1977 |
Embedded Electromagnetic Gauge Measurements and Modeling of Shock Initiation in the TATB Based Explosives LX-17 and PBX 9502
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conference | January 2002 |
Detonation waves in triaminotrinitrobenzene
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journal | October 1997 |
Calibration of manganin pressure gauges at 250 °C
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conference | January 2000 |
ALE3D Statistical Hot Spot Model Results for LX-17
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conference | January 2004 |
Shock sensitivity of LX-04 at 150 °C
|
conference | January 2000 |
Detonation waves in pentaerythritol tetranitrate
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journal | June 1997 |
Critical Conditions for Impact- and Shock-Induced Hot Spots in Solid Explosives †
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journal | January 1996 |
Effect of confinement and thermal cycling on the shock initiation of LX-17
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journal | April 1996 |
Similar Records
Effects of tandem and colliding shock waves on the initiation of triaminotrinitrobenzene
SHOCK INITIATION EXPERIMENTS ON THE TATB BASED EXPLOSIVE RX-03-GO WITH IGNITION AND GROWTH MODELING