| Issue |
EPJ Web of Conferences
Volume 94, 2015
DYMAT 2015 - 11th International Conference on the Mechanical and Physical Behaviour of Materials under Dynamic Loading
|
|
|---|---|---|
| Article Number | 01077 | |
| Number of page(s) | 5 | |
| Section | Experimental Techniques | |
| DOI | https://doi.org/10.1051/epjconf/20159401077 | |
| Published online | 07 September 2015 | |
https://doi.org/10.1051/epjconf/20159401077
Determination of sound velocities of “overcompressed” detonation in HMX-based explosive
Russian Federal Nuclear Center – VNIIEF, Russia
a Corresponding author: aekovalev@vniief.ru
Published online: 7 September 2015
The authors present results of determination of sound velocities in explosion products (EP) of HMX-based explosive overcompressed up to the pressures of 50–85 GPa by overtaking unloading method. The radiowave and optical methods are used to record the time when a front of overcompressed detonation wave in investigated sample of high explosive (HE) is overtaken by expansion wave, which propagates from the back surface of impactor with sound velocity. The data on sound velocities, which were independently obtained by two different methods, were in agreement. The methods with use of radiointerferometer and indicator liquid are rather effective for determination of sound velocities in overcompresed EP and for investigation of parameters at the Jouget point of various HEs, which are required for calibration of their equations of state (EOS).
© Owned by the authors, published by EDP Sciences, 2015
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