Consequences of coaxial jet penetration performance and shaped charge design criteria
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Authors
Hasenberg, David
Subjects
Advisors
Date of Issue
2010
Date
2010
Publisher
Monterey, California. Naval Postgraduate School
Language
Abstract
There are longstanding interests in multi-material shaped charge liners for purposes of, for example, diagnosing jet formation, overcoming coherent flow limitations, and enhancing behind the target effects. This research shows the possibilities for generating stable multi-material coaxial shaped charge jets. General design criteria and guidelines for multi-material coaxial jetting and penetration are developed and investigated, based on experimental data and simulation of a 100 mm charge. Further, the influence on jet coherency and the effect of density variation on penetration is studied. Findings are in agreement with Harisson's and Walker's coherency theory, showing that the flow velocity is the key factor for jet coherency. Multi-material design concepts are presented and tested with the finite difference code ANSYS AUTODYN
Type
Technical Report
Description
Series/Report No
Department
Identifiers
NPS Report Number
NPS-PH-10-001
Sponsors
Funder
Format
xxii, 187 p.: col. ill.;28 cm.
Citation
Distribution Statement
Approved for public release; distribution is unlimited.