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DOE OSTI · 1739932

Overdriven-detonation states produced by spherically diverging waves

Biss, Matthew M.·Lieber, Mark Andrew·Martinez, Michael E.
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Abstract

A series of experiments are currently underway at the Detonation Science and Technology group, within Los Alamos National Laboratory, to study the overdriven-detonation states achievable in energetic materials as a result of detonation-wave interactions. A multi-component, energetic-material array was designed to study the amplification of velocity and pressure states produced by spherically diverging detonation waves in pentaerythritol tetranitrate (PETN) output charges. The unique geometry provides a low-jitter, highly controlled series of interactions between three independent-detonation inputs. Streak-camera imaging was performed on the output face of PETN pellets ranging in thickness from 2.5 – 10 mm to characterize the resulting breakout profile. Additionally, photonic Doppler velocimetry (PDV) measurements were collected at the output-pellet surface to determine simultaneity within the system. Detonation-wave velocities upwards of 16 mm/µs were measured, as compared to a steady-state detonation velocity of 7.9 mm/µs for the PETN pressing density investigated. Finally, additional experiments are being conducted to measure the pressure amplification generated at key areas of interaction.

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BibTeXRIS

Biss, Matthew M., Lieber, Mark Andrew, Martinez, Michael E.. 2020-11-04. Overdriven-detonation states produced by spherically diverging waves. https://doi.org/10.1063/12.0000923

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