Abstract
We studied the effect of varying the HMX concentration in a plastic-bonded explosive (PBX) by analyzing the time-dependent thermal emission with short (4 ns) duration shocks that produced pressures of about 20 GPa. We found that the HMX tended to aggregate even at the lowest concentrations. Once the cluster size reached about 15 μm, at 30 wt.%, the cluster size started increasing more dramatically, but energy release during deflagration reached a plateau. These observations are consistent with the idea that the clusters act as a limiting factor for hot spot criticality, possibly due to heat loss mechanisms such as conduction and convection.
Recommended Citation
L. Salvati et al., "From A Single Grain To Microstructure: How Explosive Grains Interact Under Shock Compression," AIP Conference Proceedings, vol. 2844, no. 1, article no. 290010, AIP Publishing, Sep 2023.
The definitive version is available at https://doi.org/10.1063/12.0020387
Department(s)
Mechanical and Aerospace Engineering
Publication Status
Free Access
International Standard Serial Number (ISSN)
1551-7616; 0094-243X
Document Type
Article - Conference proceedings
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2026 The Authors, All rights reserved.
Publication Date
26 Sep 2023
Comments
Air Force Office of Scientific Research, Grant FA9550-19-1-0027