Ignition Chemistry in HMX from Thermal Explosion to Detonation

Bryan F. Henson
2002 AIP Conference Proceedings  
We present a global chemical decomposition model for HMX based materials. The model contains three component processes, the initial beta to delta phase transition, solid to gas decomposition and gas phase ignition, for which all kinetic and thermodynamic parameters are fixed by independent measurement. We present an isothermal ignition calculation over the range of temperatures from thermal explosion to detonation. The calculation is performed for a sphere of material and the critical diameter
more » ... nd time for ignition are determined. The sample diameter, and thus the balance of heat generation and dissipation, is the only degree of freedom in the calculation. The results of the calculation are in good agreement with data with respect to both the ignition times and length scales over the full temperature range of energetic response in HMX.
doi:10.1063/1.1483723 fatcat:hs4h43bzabaptjnyzap75dzb3e