Particle response to shock waves in solids: Dynamic witness plate/PIV method for detonations

Michael J. Murphy, Ronald Adrian

Research output: Contribution to journalArticle

14 Scopus citations

Abstract

Studies using transparent, polymeric witness plates consisting of polydimethlysiloxane (PDMS) have been conducted to measure the output of exploding bridge wire (EBW) detonators and exploding foil initiators (EFI). Polymeric witness plates are utilized to alleviate particle response issues that arise in gaseous flow fields containing shock waves and to allow measurements of shock-induced material velocities to be made using particle image velocimetry (PIV). Quantitative comparisons of velocity profiles across the shock waves in air and in PDMS demonstrate the improved response achieved by the dynamic witness plate method. Schlieren photographs complement the analysis through direct visualization of detonator-induced shock waves in the witness plates.

Original languageEnglish (US)
Pages (from-to)163-171
Number of pages9
JournalExperiments in Fluids
Volume43
Issue number2-3
DOIs
StatePublished - Aug 1 2007

ASJC Scopus subject areas

  • Computational Mechanics
  • Mechanics of Materials
  • Physics and Astronomy(all)
  • Fluid Flow and Transfer Processes

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