Explosive Magnetic Device with a Three-Layered Liner for Radiographic Study of Dynamic Strength of Materials

This paper presents the construction-technology schematic of the device comprising the helical and disk EMGs with a three-layered cylindrical liner (Al-dielectric-Cu) designed for experiments RHSR-0,1,2 at the current of 33-35 MA. Polyethylene or water was used as a dielectric layer. The experiments tested successfully the idea to study the dynamic strength of materials by X-raying the growth of amplitude of axisymmetric sinusoidal perturbations machined initially on the outer surface of the examined inner layer of the liner.

I. INTRODUCTION

The 3–4-layer liner systems [1], [2], in which the current-conducting outer layer works as a liner-«piston>> or liner-«impactor>>, were proposed to study the dynamic strength of materials on the basis of growth of initial perturbations of liners. For this purpose in [2] it is proposed to use a disk explosive magnetic generator (DEMG) with a diameter of 40 cm as a pulsed power source.