NDLI: Effect of electric current on the depth of penetration of shaped-charge jets into targets

Content Provider	Springer Nature Link
Author	Shvetsov, G. A. Matrosov, A. D. Stankevich, S. V.
Copyright Year	2015
Abstract	This paper presents the results of experimental and numerical studies of the behavior of metallic shaped-charge jets (SCJs) through which electric current flows. The possibility of decreasing and increasing the depth of penetration of SCJs into targets is considered. The concepts are introduced of the critical current density and the ideal shape of the current pulse at which necking magnetohydrodynamic instability develops in the jet, accompanied by volume explosion of the SCJ elements at their exit from the interelectrode gap. The development of necking magnetohydrodynamic instability in the SCJ and subsequent volume explosion of the jet material lead to a reduction in the jet length and density, and as a consequence, to a decrease in the depth of SCJ penetration into the target. It has been shown that this process can be controlled by changing the electric pulse parameters. The possibility of increasing the depth of SCJ penetration into targets under conditions where the electric current flowing through the SCJ is less than the critical value is analyzed. The process of heating of SCJs of different materials (Cu, Fe, Mo, Ta, W, etc.) by the electric current flowing through them is considered. It is shown that the use of electric current to heat SCJs may be a promising approach to increase the depth of penetration of SCJs into targets.
Starting Page	125
Ending Page	135
Page Count	11
File Format	PDF
ISSN	00218944
Journal	Journal of Applied Mechanics and Technical Physics
Volume Number	56
Issue Number	1
e-ISSN	15738620
Language	English
Publisher	Pleiades Publishing
Publisher Date	2015-04-16
Publisher Place	Moscow
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	shaped-charge jet target electric current penetration Mechanics Fluid- and Aerodynamics Classical Continuum Physics Applications of Mathematics Mathematical Modeling and Industrial Mathematics Mechanical Engineering
Content Type	Text
Resource Type	Article
Subject	Mechanics of Materials Condensed Matter Physics Mechanical Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Shaped charge with an axial channel

Use of shutdown of the capacitive storage in implementing electrical action on metallic shaped-charge jets

Cutoff of a shaped-charge jet

Matching of operation of “base-head” composite shaped-charge stages

Interaction of a shaped-charge jet with a target possessing an axial orifice

Thermal softening of metallic shaped-charge jets formed by the collapse of shaped-charge liners in the presence of a magnetic field

Closed-form model for the analysis of W-type shaped charges

Generation of Mach waves by supersonic jets

Penetration of a copper rod into a sandy target

Effect of electric current on the depth of penetration of shaped-charge jets into targets

Similar Documents

Shaped charge with an axial channel

Use of shutdown of the capacitive storage in implementing electrical action on metallic shaped-charge jets

Cutoff of a shaped-charge jet

Matching of operation of “base-head” composite shaped-charge stages

Interaction of a shaped-charge jet with a target possessing an axial orifice

Thermal softening of metallic shaped-charge jets formed by the collapse of shaped-charge liners in the presence of a magnetic field

Closed-form model for the analysis of W-type shaped charges

Generation of Mach waves by supersonic jets

Penetration of a copper rod into a sandy target

Effect of electric current on the depth of penetration of shaped-charge jets into targets