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DOE OSTI · 1296680

Dimensionality effects in void-induced explosive sensitivity

Herring, Stuart Davis·Germann, Timothy Clark·Gronbech-Jensen, Niels
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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.

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37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY42 ENGINEERINGREBOhigh explosivesmolecular dynamicsshock sensitivityshock sensitivity, high explosives, molecular dynamics, REBOspherical voids

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Herring, Stuart Davis, Germann, Timothy Clark, Gronbech-Jensen, Niels. 2016-09-02. Dimensionality effects in void-induced explosive sensitivity. https://doi.org/10.1080/13647830.2016.1189598

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