Laser driven flyers for investigations of shock initiation of explosives (2024)

Laser driven flyers for investigations of shock initiation of explosives. / Bassett, Will P.; Johnson, Belinda P.; Dlott, Dana D.
Shock Compression of Condensed Matter - 2017: Proceedings of the Conference of the American Physical Society Topical Group on Shock Compression of Condensed Matter. ed. / Marcus D. Knudson; Eric N. Brown; Ricky Chau; Timothy C. Germann; J. Matthew D. Lane; Jon H. Eggert. American Institute of Physics Inc., 2018. 150003 (AIP Conference Proceedings; Vol. 1979).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

@inproceedings{cb0c3c5c87734bc4a9cb7552aef7fc94,

title = "Laser driven flyers for investigations of shock initiation of explosives",

abstract = "A full description and characterization of a tabletop laser-launched flyer plate system with associated high-speed diagnostics is presented. With this tabletop system, we can investigate shock initiation and detonation of energetic materials with hundreds of shots per day. The present study focuses on application of the 32-channel pyrometer developed in our group for optical temperature measurements of hot spots in shock-initiated energetic materials. Extremely high temperature (>6000 K) hot spots have been observed in fine powders of octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine (HMX), and the shock duration dependence on chemical kinetics has been studied. Polymer bound (PBX) charges with controllable microstructure were used to identify the origins of high temperature hot spots. Hot spot temperatures were reduced to 4000 K when an elastomeric binder was used to fill void spaces between powder grains. We attribute these high temperatures to adiabatic compression of gases in microvoids (>6000K) and in nanovoids (4000K), based on measurements where the gas composition and void sizes were varied.",

author = "Bassett, {Will P.} and Johnson, {Belinda P.} and Dlott, {Dana D.}",

note = "Publisher Copyright: {\textcopyright} 2018 Author(s).; 20th Biennial American Physical Society Conference on Shock Compression of Condensed Matter, SCCM 2017 ; Conference date: 09-07-2017 Through 14-07-2017",

year = "2018",

month = jul,

day = "3",

doi = "10.1063/1.5044959",

language = "English (US)",

series = "AIP Conference Proceedings",

publisher = "American Institute of Physics Inc.",

editor = "Knudson, {Marcus D.} and Brown, {Eric N.} and Ricky Chau and Germann, {Timothy C.} and Lane, {J. Matthew D.} and Eggert, {Jon H.}",

booktitle = "Shock Compression of Condensed Matter - 2017",

}

TY - GEN

T1 - Laser driven flyers for investigations of shock initiation of explosives

AU - Bassett, Will P.

AU - Johnson, Belinda P.

AU - Dlott, Dana D.

N1 - Publisher Copyright:© 2018 Author(s).

PY - 2018/7/3

Y1 - 2018/7/3

N2 - A full description and characterization of a tabletop laser-launched flyer plate system with associated high-speed diagnostics is presented. With this tabletop system, we can investigate shock initiation and detonation of energetic materials with hundreds of shots per day. The present study focuses on application of the 32-channel pyrometer developed in our group for optical temperature measurements of hot spots in shock-initiated energetic materials. Extremely high temperature (>6000 K) hot spots have been observed in fine powders of octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine (HMX), and the shock duration dependence on chemical kinetics has been studied. Polymer bound (PBX) charges with controllable microstructure were used to identify the origins of high temperature hot spots. Hot spot temperatures were reduced to 4000 K when an elastomeric binder was used to fill void spaces between powder grains. We attribute these high temperatures to adiabatic compression of gases in microvoids (>6000K) and in nanovoids (4000K), based on measurements where the gas composition and void sizes were varied.

AB - A full description and characterization of a tabletop laser-launched flyer plate system with associated high-speed diagnostics is presented. With this tabletop system, we can investigate shock initiation and detonation of energetic materials with hundreds of shots per day. The present study focuses on application of the 32-channel pyrometer developed in our group for optical temperature measurements of hot spots in shock-initiated energetic materials. Extremely high temperature (>6000 K) hot spots have been observed in fine powders of octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine (HMX), and the shock duration dependence on chemical kinetics has been studied. Polymer bound (PBX) charges with controllable microstructure were used to identify the origins of high temperature hot spots. Hot spot temperatures were reduced to 4000 K when an elastomeric binder was used to fill void spaces between powder grains. We attribute these high temperatures to adiabatic compression of gases in microvoids (>6000K) and in nanovoids (4000K), based on measurements where the gas composition and void sizes were varied.

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U2 - 10.1063/1.5044959

DO - 10.1063/1.5044959

M3 - Conference contribution

AN - SCOPUS:85049783861

T3 - AIP Conference Proceedings

BT - Shock Compression of Condensed Matter - 2017

A2 - Knudson, Marcus D.

A2 - Brown, Eric N.

A2 - Chau, Ricky

A2 - Germann, Timothy C.

A2 - Lane, J. Matthew D.

A2 - Eggert, Jon H.

PB - American Institute of Physics Inc.

T2 - 20th Biennial American Physical Society Conference on Shock Compression of Condensed Matter, SCCM 2017

Y2 - 9 July 2017 through 14 July 2017

ER -