Initial hot spot temperatures and temperature evolutions for PETN and RDX-based polymer-bound explosives under shock compression by laser-driven flyer plates at speeds from 1.5 – 4.5 km/s are presented. The PBX formulations studied here consist of either pentaerythritol tetranitrate (PETN) or 1,3,5-trinitro-1,3,5-triazinane (RDX) in a 80/20 wt.% mixture with a silicone elastomer binder. The temperature dynamics and are modeled well by a single exponential cooling term for all impact velocities in both PETN and RDX, while RDX at low velocities additionally requires a single Gaussian heating term to capture its slow energy release. When shocked to near the characteristic von Neumann spike pressure cooling rates rapidly increase and the heating term is no longer required in RDX due to heat generation being out competed by heat loss and adiabatic expansion of product gasses.
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2 November 2020
SHOCK COMPRESSION OF CONDENSED MATTER - 2019: Proceedings of the Conference of the American Physical Society Topical Group on Shock Compression of Condensed Matter
16–21 June 2019
Portland, OR, USA
Research Article|
November 02 2020
Pyrometry in the reaction zone of PETN- and RDX-based polymer bound explosives
Will P. Bassett;
Will P. Bassett
a)
1
Lawrence Livermore National Laboratory
, 7000 East Ave, Livermore, CA 94550, USA
a)Corresponding author: [email protected]
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Belinda P. Johnson;
Belinda P. Johnson
2
School of Chemical Sciences and Fredrick E. Seitz Materials Research Laboratory
, 600 S. Goodwin Ave., Urbana, IL 61801, USA
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Lawrence Salvati, III;
Lawrence Salvati, III
2
School of Chemical Sciences and Fredrick E. Seitz Materials Research Laboratory
, 600 S. Goodwin Ave., Urbana, IL 61801, USA
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Dana D. Dlott
Dana D. Dlott
2
School of Chemical Sciences and Fredrick E. Seitz Materials Research Laboratory
, 600 S. Goodwin Ave., Urbana, IL 61801, USA
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a)Corresponding author: [email protected]
AIP Conf. Proc. 2272, 030002 (2020)
Citation
Will P. Bassett, Belinda P. Johnson, Lawrence Salvati, Dana D. Dlott; Pyrometry in the reaction zone of PETN- and RDX-based polymer bound explosives. AIP Conf. Proc. 2 November 2020; 2272 (1): 030002. https://doi.org/10.1063/12.0000912
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