Acceleration of metallic flyers at the Angara-5-1 installation

Abstract

Loading of the sample by magnetic field allows studying the dynamic characteristics of substances at sub-microsecond processes. At the Angara-5-1 installation, megabar pressures are generated by the magnetic field produced by the current with linear density of 5 MA/cm. Velocity to 10 km/s was obtained during previous experimental studies with a duralumin flyer of 1 mm thick. The present report contains the results of the experiment on acceleration of flyers made from other metals, such as copper and titanium. The numerical simulation was carried out to estimate the parameters of the flyer made from these metals under the action by the current with a linear density of ≈ 4.5 MA/cm. The time dependencies of the velocity for different layers of flyers, their displacement from the initial position, and the distribution of the temperature, density, pressure and current density in different time over its thickness were obtained. A comparison of the simulation results and experimental data is presented.