| Abstract: | The velocity of the explosion products behind the detonation wavefront in a 50/50 TNT-hexogen explosive was measured by an electromagnetic method.The experimental data on the mass velocity profile behind the wavefront in charges of different lengths, and the results of measurements of the motion of the backward rarefaction waves can be well described if in the mass velocity-time curves one isolates a stationary zone of  0.1  sec and regards the rest of the motion as self-similar.The experimentally observed sharp drop of mass velocity behind the wavefront indicates that the isentropic exponent of the explosion products increases upon expansion.The observed data on the distribution of mass velocities were used to calculate the isentrope of the explosion products in the pressure range 100–250 000 atm. |
