Previous research on unconfined TATB-based explosives heated to 250°C revealed increased shock sensitivity.
The goals of this effort are to develop and validate computational tools that predict the shock sensitivity of energetic materials.
For further research on the thermal sensitivity and shock sensitivity of the samples, the Koenen test and UN gap test were conducted.
The shock sensitivity of one such propellant, ANB-3066, is determined using embedded manganin pressure gauges at an elevated temperature of 170°C.
Previous work has shown that the Al additive particle size alters the failure diameter, a measure of shock sensitivity, of AN/Al.
A series of small scale gap tests and detailed hydrodynamic simulations were used to validate the reactive flow model for predicting the shock propagation in a train configuration and to quantify the shock sensitivity of the energetic materials.
It reflects that bond dissociation energy of X NO2 (X = C, N, O) and Mulliken charge of nitro groups may be the important factors influencing the shock sensitivity of nitro compounds.
On the basis of the fitted model, bond dissociation energy of X NO2 (X = C) and Mulliken charges of nitro groups of another 14 kinds of heterocyclic nitro compounds are in consideration to predict shock sensitivity.
Specifically, to use our packing code, Rocpack, to generate morphologies of interest for shock sensitivity assessments, and to use our CFD code, RocSDT, to propagate shocks of various strengths through the pack to predict the onset of detonation.
Detonation failure, here defined as a weakly supported shock wave traveling with a decaying velocity, of aluminized ammonium nitrate (AN/Al) was considered to investigate the relationship between the detonation failure process and shock sensitivity.
