Accession Number:

ADA370155

Title:

Current Instability and Disruption of Shaped-Charge Jets.

Descriptive Note:

Final rept.,

Corporate Author:

RUSSIAN ACADEMY OF SCIENCES NOVOSIBIRSK INST OF HYDRODYNAMICS (LAVRENTYEV) SIBERIAN DIV NOVOSIBIRSK

Personal Author(s):

Report Date:

1998-11-16

Pagination or Media Count:

67.0

Abstract:

The idea of electromagnetic action on a shaped-charge jet SCJ has a relatively long history. The first experiments familiar to the authors were performed under the guidance of M. A. Lavrentyev as early as 1957 1. In these experiments, small shaped charges SC of caliber 25 mm were used. A capacitor bank with a voltage of up to 50 kV was used as the electromagnetic energy source. The problem has not been studied in detail, but these experiments showed that a SCJ can be destroyed by passage of a high electric current through it, which leads to a decrease in the penetration depth. At the end of the 1970s, comprehensive studies of the stability of SCJ with passage of an axial electric current through them were began at the Institute of Hydrodynamics 24. The experiments have shown that SCJ are unstable in the magnetic field of an axial current. The instability detected in the experiments was called current instability of shaped-charged jets 3. Later other teams of scientists began to work in this line. At present, a great number of works concerned with this physical phenomenon have been published. A review of the main publications of authors from Russia Soviet Union is given in this report.

Subject Categories:

  • Ammunition and Explosives
  • Electricity and Magnetism

Distribution Statement:

APPROVED FOR PUBLIC RELEASE