On the possibility of experimental studies of dynamic material strength according to perturbation growth in magnetically driven layered liner systems

Explosive magnetic experiments RHSR-l,2 confirmed the designed characteristics of three-layered liner systems (Al-H₂O-Cu) and practicability of using water as a medium weakly inhibiting perturbation growth of the liners as opposed to polyethylene that in the experiment RHSR-l showed a high yield strength, ~ 10-20 times higher than the quasi-static one. The paper presents calculations of liners used in these systems and their comparison to experimental data.

INTRODUCTION

To study dynamic strength of materials from experimental growth of initial perturbations of liners that arise in development of their Rayleigh-Taylor instability we proposed to accelerate 3–4 layer cylindrical liner systems by current pulses of the capacitor bank Atlas [1] and disk explosive magnetic generator (DEMG) [2].