Explosive magnetic liner systems to study dynamic strength of materials

• Published in: Digest of Technical Papers. PPC-2003. 14th IEEE International Pulsed Power Conference (IEEE Cat. No.03CH37472) Vol. 1; pp. 74 - 77 Vol.1
• Main Authors: Buyko, A.M., Ivanova, G.G., Mkhov, V.N., Nizovtsev, P.N., Petrukhin, A.A., Solovyev, V.P., Sofronov, V.N., Yakubov, V.B.
• Format: Conference Proceeding
• Language: English
• Published: IEEE 2003
• Subjects: Capacitive sensors; Copper; Electric shock; Electromyography; Explosives; Magnetic flux; Magnetic materials; Pulse power systems; Shock waves; Switches
• ISBN: 0780379152; 9780780379152
• DOI: 10.1109/PPC.2003.1277664

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.