Open AccessMesoscopic simulation of laser initiation in pentaerythritol tetranitrate
Author(s) -
С. А. Мурзов,
А. А. Чесноков,
А. Н. Паршиков,
Мария Сергеевна Егорова,
V. V. Zhakhovsky,
A. V. Yanilkin
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1250/1/012045
Subject(s) - pentaerythritol tetranitrate , explosive material , detonation , materials science , shock wave , mechanics , mesoscopic physics , energetic material , computer simulation , microstructure , composite material , physics , chemistry , organic chemistry , quantum mechanics
A numerical simulation of laser initiation in a pentaerythritol tetranitrate is presented. A contact smoothed particle hydrodynamics modeling with an explicit simplified-geometry of the microstructure is defined. A sequence of spheres in simple cubic and face-centred cubic lattices is considered. Different types of PETN crystal particles compression by high-enthalpy products expansion are simulated in the hydrodynamic approach. The compactification of spheres and formation of a shock wave in a porous material is observed. Compactification of spherical particles stops the flow of hot products and shock wave is able to override the reaction front propagation. The simulation demonstrates a shock-driven mechanism in the detonation initiation processes.