Dimensionality effects in void-induced explosive sensitivity

作者:Herring Stuart Davis*; Germann Timothy Clark; Gronbech Jensen Niels
来源:Combustion Theory and Modelling, 2016, 20(5): 866-876.
DOI:10.1080/13647830.2016.1189598

摘要

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.

  • 出版日期2016-10
  • 单位Los Alamos