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Title: Dimensionality effects in void-induced explosive sensitivity

Abstract

Here, the dimensionality of defects in high explosives controls their heat generation and the expansion of deflagrations from them. We compare the behaviour of spherical voids in three dimensions to that of circular voids in two dimensions. The behaviour is qualitatively similar, but the additional focusing along the extra transverse dimension significantly reduces the piston velocity needed to initiate reactions. However, the reactions do not grow as well in three dimensions, so detonations require larger piston velocities. Pressure exponents are seen to be similar to those for the two-dimensional system.

Authors:
 [1];  [1];  [2]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  2. Univ. of California, Davis, CA (United States)
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1296680
Report Number(s):
LA-UR-16-20616
Journal ID: ISSN 1364-7830
Grant/Contract Number:  
AC52-06NA25396
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Combustion Theory and Modelling
Additional Journal Information:
Journal Name: Combustion Theory and Modelling; Journal ID: ISSN 1364-7830
Publisher:
Taylor & Francis
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; shock sensitivity, high explosives, molecular dynamics, REBO; shock sensitivity; spherical voids; high explosives; molecular dynamics; REBO

Citation Formats

Herring, Stuart Davis, Germann, Timothy Clark, and Gronbech-Jensen, Niels. Dimensionality effects in void-induced explosive sensitivity. United States: N. p., 2016. Web. doi:10.1080/13647830.2016.1189598.
Herring, Stuart Davis, Germann, Timothy Clark, & Gronbech-Jensen, Niels. Dimensionality effects in void-induced explosive sensitivity. United States. doi:10.1080/13647830.2016.1189598.
Herring, Stuart Davis, Germann, Timothy Clark, and Gronbech-Jensen, Niels. Fri . "Dimensionality effects in void-induced explosive sensitivity". United States. doi:10.1080/13647830.2016.1189598. https://www.osti.gov/servlets/purl/1296680.
@article{osti_1296680,
title = {Dimensionality effects in void-induced explosive sensitivity},
author = {Herring, Stuart Davis and Germann, Timothy Clark and Gronbech-Jensen, Niels},
abstractNote = {Here, the dimensionality of defects in high explosives controls their heat generation and the expansion of deflagrations from them. We compare the behaviour of spherical voids in three dimensions to that of circular voids in two dimensions. The behaviour is qualitatively similar, but the additional focusing along the extra transverse dimension significantly reduces the piston velocity needed to initiate reactions. However, the reactions do not grow as well in three dimensions, so detonations require larger piston velocities. Pressure exponents are seen to be similar to those for the two-dimensional system.},
doi = {10.1080/13647830.2016.1189598},
journal = {Combustion Theory and Modelling},
number = ,
volume = ,
place = {United States},
year = {Fri Sep 02 00:00:00 EDT 2016},
month = {Fri Sep 02 00:00:00 EDT 2016}
}

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Cited by: 1 work
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Works referenced in this record:

Explosive Effects and Applications
book, January 1998