SALIENT FEATURES OF INERTIAL STRETCHING OF 
A HIGH-GRADIENT CONDUCTING ROD IN 
A LONGITUDINAL LOW-FREQUENCY MAGNETIC FIELD
S. V. Fedorov, A. V. Babkin, and
S. V. Ladov

UDC 532.52+533.95

From the viewpoint of the model of a uniformly stretching 
cylindrical incompressible rigid-plastic conducting rod, the salient 
features of deformation of metal cumulative jets in a longitudinal 
low-frequency magnetic field are considered. The electromagnetic processes 
proceeding in the jet segments when they enter or leave the region 
with a magnetic field have been investigated. It is shown that the 
electromagnetic forces arising as the result of deformation of the 
jet with the magnetic field that has penetrated into its material 
should inhibit the development of plastic instability, extending the 
stretching stage of the jet before it breaks up into separate segments 
and thus creating prerequisites for increasing its penetrating power 
capacity. The magnetic-field parameters that enable one to expect 
a noticeable manifestation of the stabilizing effect have been estimated.

N. E. Bauman Moscow State Technical University, Moscow, Russia; 
email: pk@mx.bmstu.ru. Translated from Inzhenerno-Fizicheskii Zhurnal, 
Vol. 74, No. 2, pp. 79-86, March-April, 2001. Original article submitted 
July 11, 2000.

JEPTER7492020011
JEPTER749201