Deflagration to detonation experiments in granular HMX

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In this paper the authors report on continuing work involving a series of deflagration-to-detonation transition (DDT) experiments in which they study the piston-initiated DDT of heavily confined granular cyclotetramethylenetetranitramine (HMX). These experiments were designed to he useful in model development and evaluation. A main focus of these experiments is the effect of density on the DDT event. Particle size distribution and morphology are carefully characterized. In this paper they present recent surface area analysis. Earlier studies demonstrated extensive fracturing and agglomeration in samples at densities as low as 75% TMD as evidenced by dramatic decreases in particle size distribution due ... continued below

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14 p.

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Burnside, N.J.; Son, S.F.; Asay, B.W. & Dickson, P.M. March 1, 1998.

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Description

In this paper the authors report on continuing work involving a series of deflagration-to-detonation transition (DDT) experiments in which they study the piston-initiated DDT of heavily confined granular cyclotetramethylenetetranitramine (HMX). These experiments were designed to he useful in model development and evaluation. A main focus of these experiments is the effect of density on the DDT event. Particle size distribution and morphology are carefully characterized. In this paper they present recent surface area analysis. Earlier studies demonstrated extensive fracturing and agglomeration in samples at densities as low as 75% TMD as evidenced by dramatic decreases in particle size distribution due to mild stimulus. This is qualitatively confirmed with SEM images and quantitatively studied with gas absorption surface area analysis. Also, in this paper they present initial results using a microwave interferometer technique. Dynamic calibration of the technique was performed, a 35 GHz signal is used to increase resolution, and the system has been designed to be inexpensive for repeated experiments. The distance to where deformation of the inner wall begins for various densities is reported. This result is compared with the microwave interferometer measurements.

Physical Description

14 p.

Notes

OSTI as DE98002943

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  • 1997 Joint Army, Navy, NASA, Air Force (JANNAF) CS/propulsion systems hazards subcommittee meeting, West Palm Beach, FL (United States), 27-31 Oct 1997

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  • Other: DE98002943
  • Report No.: LA-UR--97-4312
  • Report No.: CONF-9710108--
  • Grant Number: W-7405-ENG-36
  • DOI: 10.2172/650288 | External Link
  • Office of Scientific & Technical Information Report Number: 650288
  • Archival Resource Key: ark:/67531/metadc705870

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  • March 1, 1998

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  • Sept. 12, 2015, 6:31 a.m.

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  • Feb. 25, 2016, 2:27 p.m.

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Burnside, N.J.; Son, S.F.; Asay, B.W. & Dickson, P.M. Deflagration to detonation experiments in granular HMX, report, March 1, 1998; New Mexico. (digital.library.unt.edu/ark:/67531/metadc705870/: accessed December 14, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.