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This content will become publicly available on July 6, 2017

Title: Dimensionality effects in void-induced explosive sensitivity

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:
OSTI Identifier:
1296680
Report Number(s):
LA-UR--16-20616
Journal ID: ISSN 1364-7830
Grant/Contract Number:
AC52-06NA25396
Type:
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
Research Org:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY shock sensitivity; high explosives; molecular dynamics; REBO; spherical voids