Shock-induced explosive chemistry in a deterministic sample configuration.

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Explosive initiation and energy release have been studied in two sample geometries designed to minimize stochastic behavior in shock-loading experiments. These sample concepts include a design with explosive material occupying the hole locations of a close-packed bed of inert spheres and a design that utilizes infiltration of a liquid explosive into a well-defined inert matrix. Wave profiles transmitted by these samples in gas-gun impact experiments have been characterized by both velocity interferometry diagnostics and three-dimensional numerical simulations. Highly organized wave structures associated with the characteristic length scales of the deterministic samples have been observed. Initiation and reaction growth in an ... continued below

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44 p.

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Stuecker, John Nicholas; Castaneda, Jaime N.; Cesarano, Joseph, III; Trott, Wayne Merle; Baer, Melvin R. & Tappan, Alexander Smith October 1, 2005.

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Description

Explosive initiation and energy release have been studied in two sample geometries designed to minimize stochastic behavior in shock-loading experiments. These sample concepts include a design with explosive material occupying the hole locations of a close-packed bed of inert spheres and a design that utilizes infiltration of a liquid explosive into a well-defined inert matrix. Wave profiles transmitted by these samples in gas-gun impact experiments have been characterized by both velocity interferometry diagnostics and three-dimensional numerical simulations. Highly organized wave structures associated with the characteristic length scales of the deterministic samples have been observed. Initiation and reaction growth in an inert matrix filled with sensitized nitromethane (a homogeneous explosive material) result in wave profiles similar to those observed with heterogeneous explosives. Comparison of experimental and numerical results indicates that energetic material studies in deterministic sample geometries can provide an important new tool for validation of models of energy release in numerical simulations of explosive initiation and performance.

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44 p.

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  • Report No.: SAND2005-6758
  • Grant Number: AC04-94AL85000
  • DOI: 10.2172/875610 | External Link
  • Office of Scientific & Technical Information Report Number: 875610
  • Archival Resource Key: ark:/67531/metadc877611

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Creation Date

  • October 1, 2005

Added to The UNT Digital Library

  • Sept. 21, 2016, 2:29 a.m.

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  • July 25, 2017, 9:05 a.m.

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Stuecker, John Nicholas; Castaneda, Jaime N.; Cesarano, Joseph, III; Trott, Wayne Merle; Baer, Melvin R. & Tappan, Alexander Smith. Shock-induced explosive chemistry in a deterministic sample configuration., report, October 1, 2005; United States. (digital.library.unt.edu/ark:/67531/metadc877611/: accessed May 23, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.