About laser heat absorbing impurities in the transparence matrix of pentaerythritol tetranitrate

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Abstract

Simulation of laser heat absorbing inclusions in a transparent matrix of explosive material is carried out. The inclusions are spherical particles with R0 radius ranging from 10-5 to 10-2 cm. The duration of the laser pulse varies from 10-9 to 10-3 s and allows investigating process in both adiabatic and quasi-stationary heating modes. It has been found that the duration of laser pulse affects the maximum heating temperature for particles with a specific radius. A remarkable thing is that the temperature drastically decreases if the absorption cross section and small size of inclusions are taken into account. It leads to heat reduction in a thermal center, which is formed nearby a small-sized inclusion, and shows strongly decreased reactive capacity of explosive decomposition.

Original languageEnglish
Article number012155
JournalJournal of Physics: Conference Series
Volume830
Issue number1
DOIs
Publication statusPublished - 4 May 2017

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ASJC Scopus subject areas

  • Physics and Astronomy(all)

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