Explosive magnetic liner systems to study dynamic strength of materials

To study dynamic strength of materials according to the initial liner perturbation growth in Rayleigh-Taylor instability development, three-layer liner systems driven by azimuthal magnetic field pressure have been suggested. This paper demonstrates that 0.4 m diameter disk EMG ensuring currents up to /spl sim/70 MA can be used for this purpose. In the three-layer liner systems, the liner shock-free loading to more than 1 Mbar pressures is therewith possible, with the pressures rising for times longer than 1/spl mu/s or longer than 0.3/spl mu/s in different systems. Here the shock loading of the liners under study is possible up to 3-4 Mbar pressures. Examples of 2D computations of the initial perturbation growth in the liners under study at shock-free and shock pressures up to 1 Mbar, strain rates up to 10/sup 8/sec/sup -1/, and strains up to 200 % are given.