Characterizing detonator output using dynamic witness plates

Michael J. Murphy, Ronald Adrian

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

A sub-microsecond, time-resolved micro-particle-image velocimetry (PIV) system is developed to investigate the output of explosive detonators. Detonator output is directed into a transparent solid that serves as a dynamic witness plate and instantaneous shock and material velocities are measured in a two-dimensional plane cutting through the shock wave as it propagates through the solid. For the case of unloaded initiators (e.g. exploding bridge wires, exploding foil initiators, etc.) the witness plate serves as a surrogate for the explosive material that would normally be detonated. The velocity-field measurements quantify the velocity of the shocked material and visualize the geometry of the shocked region. Furthermore, the time-evolution of the velocity-field can be measured at intervals as small as 10 ns using the PIV system. Current experimental results of unloaded exploding bridge wire output in polydimethylsiloxane (PDMS) witness plates demonstrate 20 MHz velocity-field sampling just 300 ns after initiation of the wire.

Original languageEnglish (US)
Title of host publicationAIP Conference Proceedings
Pages655-658
Number of pages4
Volume1195
DOIs
StatePublished - 2009
EventConference of the American Physical Society Topical Group on Shock Compression of Condensed Matter, 2009 APS SCCM - Nashville, TN, United States
Duration: Jun 28 2009Jul 3 2009

Other

OtherConference of the American Physical Society Topical Group on Shock Compression of Condensed Matter, 2009 APS SCCM
CountryUnited States
CityNashville, TN
Period6/28/097/3/09

Fingerprint

detonators
velocity distribution
initiators
particle image velocimetry
output
wire
exploding wires
shock waves
foils
shock
sampling
intervals
geometry

Keywords

  • Detonator
  • Dynamic witness plate
  • PIV
  • Shock wave

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Murphy, M. J., & Adrian, R. (2009). Characterizing detonator output using dynamic witness plates. In AIP Conference Proceedings (Vol. 1195, pp. 655-658) https://doi.org/10.1063/1.3295224

Characterizing detonator output using dynamic witness plates. / Murphy, Michael J.; Adrian, Ronald.

AIP Conference Proceedings. Vol. 1195 2009. p. 655-658.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Murphy, MJ & Adrian, R 2009, Characterizing detonator output using dynamic witness plates. in AIP Conference Proceedings. vol. 1195, pp. 655-658, Conference of the American Physical Society Topical Group on Shock Compression of Condensed Matter, 2009 APS SCCM, Nashville, TN, United States, 6/28/09. https://doi.org/10.1063/1.3295224
Murphy MJ, Adrian R. Characterizing detonator output using dynamic witness plates. In AIP Conference Proceedings. Vol. 1195. 2009. p. 655-658 https://doi.org/10.1063/1.3295224
Murphy, Michael J. ; Adrian, Ronald. / Characterizing detonator output using dynamic witness plates. AIP Conference Proceedings. Vol. 1195 2009. pp. 655-658
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