Determination of sound velocities of “overcompressed” detonation in HMX-based explosive

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 w...

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Bibliographic Details
Main Authors: Zhernokletov, Mikhail V., Kovalev, Alexey E., Bel'sky, Vladimir M., Bogdanov, Evgeny N.
Format: Conference Proceeding
Language:English
Subjects:
Acoustic velocity
Back propagation
Detonation waves
Equations of state
HMX
Optics
Sound
Velocity
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Summary: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).
ISSN:2100-014X
2101-6275
2100-014X
DOI:10.1051/epjconf/20159401077