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Title: Dimensionality effects in void-induced explosive sensitivity

Journal Article · · Combustion Theory and Modelling
 [1];  [1];  [2]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  2. Univ. of California, Davis, CA (United States)
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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.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC52-06NA25396
OSTI ID:
1296680
Report Number(s):
LA-UR-16-20616
Journal Information:
Combustion Theory and Modelling, Journal Name: Combustion Theory and Modelling; ISSN 1364-7830
Publisher:
Taylor & FrancisCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 4 works
Citation information provided by
Web of Science

References (15)

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Detonations at nanometer resolution using molecular dynamics journal April 1993
Molecular Dynamics Simulations of Detonations book March 2001
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Simulation of Void Collapse in an Energetic Material, Part I: Inert Case journal September 2006
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Cited By (1)

Multi-dimensional mesoscale simulations of detonation initiation in energetic materials with density-based kinetics journal December 2017

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