Measurement of Low Level Explosives Reaction in Gauged Multi-Dimensional Steven Impact Tests
The Steven Test was developed to determine relative impact sensitivity of metal encased solid high explosives and also be amenable to two-dimensional modeling. Low level reaction thresholds occur at impact velocities below those required for shock initiation. To assist in understanding this test, multi-dimensional gauge techniques utilizing carbon foil and carbon resistor gauges were used to measure pressure and event times. Carbon resistor gauges indicated late time low level reactions 200-540 {micro}s after projectile impact, creating 0.39-2.00 kb peak shocks centered in PBX 9501 explosives discs and a 0.60 kb peak shock in a LX-04 disk. Steven Test modeling results, based on ignition and growth criteria, are presented for two PBX 9501 scenarios: one with projectile impact velocity just under threshold (51 m/s) and one with projectile impact velocity just over threshold (55 m/s). Modeling results are presented and compared to experimental data.
- Research Organization:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Sponsoring Organization:
- US Department of Energy (US)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 15005948
- Report Number(s):
- UCRL-JC-141837; TRN: US200402%%235
- Resource Relation:
- Journal Volume: 620; Conference: 12th American Physical Society on Shock Compression of Condensed Matter - Topical Conference, Atlanta, GA (US), 06/24/2001--06/29/2001; Other Information: PBD: 31 May 2001
- Country of Publication:
- United States
- Language:
- English
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