On an Experimental Setup for the Determination of the Penetration Capability of the Tail Sections of Shaped-Charge Jets

According to the calculation data, the penetrating action of shaped charges can be substantially increased (by 40–50% in the case of a target made of high-strength steel) if the lower velocity threshold, at which the termination of the penetration of the tail sections of a shaped-charge jet into the...

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Bibliographic Details
Published in:Technical physics 2021-05, Vol.66 (5), p.724-733
Main Author: Fedorov, S. V.
Format: Article
Language:English
Subjects:
Classical and Continuum Physics
Continuum mechanics
Diameters
High strength steels
Jets
Penetration
Physics
Physics and Astronomy
Rods
Shaped charges
Two dimensional models
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Summary:According to the calculation data, the penetrating action of shaped charges can be substantially increased (by 40–50% in the case of a target made of high-strength steel) if the lower velocity threshold, at which the termination of the penetration of the tail sections of a shaped-charge jet into the target occurs, is decreased by increasing the accuracy of their fabrication. To experimentally confirm these data, it is proposed to study in detail the penetration capability of the tail sections of shaped-charge jets with the use of cut-off rods made of a material with a high density which are positioned at a short distance from the shaped charge (of less than its diameter) and are intended for eliminating the higher-velocity portion of the jet. The possible parameters of the cut-off rods for obtaining isolated “tails” of shaped-charge jets with different velocities of the leading element are predicted based on the numerical modeling within a two-dimensional axially symmetrical problem of continuum mechanics.
ISSN:1063-7842
1090-6525
DOI:10.1134/S1063784221050108