Equation of State of Aluminum-Iron Oxide-Epoxy Composite

Abstract

We report on the measurements of the shock equation of state (Hugoniot) of an Al/Fe2O3/epoxy composite, prepared by epoxy cast curing of powder mixtures. Explosive loading, with Baratol, trinitrotoluene (TNT), and Octol, was used for performing experiments at higher pressures, in which case shock velocities were measured in the samples and aluminum, copper, or polymethyl methacrylate (PMMA) donor material, using piezoelectric pins. The explosive loading of the metal donors (aluminum and copper) will be discussed. Gas gun experiments provide complementary lower pressure data in which piezoelectric polyvinylidene fluoride (PVF) stress gauges were used to measure the input and propagated stress wave profiles in the sample and the corresponding shock propagation velocity. The results of the Hugoniot equation of state are compared with mesoscale finite-element simulations, which show good agreement.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 2007
Accession Number
ADA469941

Entities

People

  • David J. Benson
  • David L. Mcdowell
  • J L Jordan
  • Jason R. Foley
  • Louis Ferranti
  • Naresh N. Thadhani
  • Richard D. Dick
  • Ryan A. Austin

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Air Platforms
  • Counter IED
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Air Force Research Laboratories
  • Chemical Reactions
  • Composite Materials
  • Energetic Materials
  • Engineering
  • Epoxy Composites
  • Explosive Charges
  • Explosives
  • Gas Guns
  • Materials
  • Materials Laboratories
  • Materials Science
  • Materials Testing
  • Measurement
  • Shock Waves
  • United States

Readers

  • Combustion Dynamics and Shock Wave Physics.
  • Materials Science and Engineering.
  • Reinforced Composite Materials