Wall velocity profiles of cylindrical explosive charges
The paper describes measurement of cylindrical charge wall velocity profiles at various angles to the surface normal.The wall velocities were measured using a simple zero generation photonic Doppler velocimetry (PDV), the detonation velocity was measured simultaneously using fiber optic probes coupled with a digital chronometer.The PDV probe angles were set in the range of-2 to 17 degrees to the surface normal.The powdered pentaerythritol tetranitrate (PETN) was selected as the explosive material in order to ensure reliable detonation with maximum parameters at the measurement conditions.Explosive charges were confined in thin walled aluminum tubes.The results can be useful for characterization of the charge expansion phenomena and also for optimization of the cylinder test measurements using PDV.
Wall velocity Photonic Doppler velocimetry Fiber probe Pentaerythritol tetranitrate Gumey constant
Martin KUNZEL Ondrej NEMEC Jiri PACHMAN
Institute of Energetic Materials,Faculty of Chemical Technology,University of Pardubice,Studentska 95,Pardubice,53210,Czech Republic
国际会议
成都
英文
295-299
2013-09-24（万方平台首次上网日期，不代表论文的发表时间）