SHOCK INITIATION OF COMPOSITION B AND C-4 EXPLOSIVES; EXPERIMENTS AND MODELING
Shock initiation experiments on the explosives Composition B and C-4 were performed to obtain in-situ pressure gauge data for the purpose of providing the Ignition and Growth reactive flow model with proper modeling parameters. A 100 mm diameter propellant driven gas gun was utilized to initiate the explosive charges containing manganin piezoresistive pressure gauge packages embedded in the explosive sample. Experimental data provided new information on the shock velocity--particle velocity relationship for each of the investigated material in their respective pressure range. The run-distance-to-detonation points on the Pop-plot for these experiments showed agreement with previously published data, and Ignition and Growth modeling calculations resulted in a good fit to the experimental data. Identical ignition and growth reaction rate parameters were used for C-4 and Composition B, and the Composition B model also included a third reaction rate to simulate the completion of reaction by the TNT component. This model can be applied to shock initiation scenarios that have not or cannot be tested experimentally with a high level of confidence in its predictions.
- Research Organization:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 900074
- Report Number(s):
- UCRL-CONF-223847; TRN: US200709%%367
- Resource Relation:
- Journal Volume: 2; Journal Issue: 2; Conference: Presented at: International Conference on Shock Waves in Condensed Matter, Saint Petersburg, Russia, Sep 03 - Sep 08, 2006
- Country of Publication:
- United States
- Language:
- English
Hysteresis-corrected calibration of manganin under shock loading
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journal | January 1980 |
Precision stress measurements in severe shock‐wave environments with low‐impedance manganin gauges
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journal | January 1980 |
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