Improvement Of Penetration Performance Of
Linear Shaped Charges
Author(s)
H. Miyoshi, H. Ohba, H. Kitamura, T. Inoue & T. Hiroe
Abstract
Experiments and simulations of linear shaped charges (LSCs) have been
conducted to improve the penetration performance and minimize collateral
damage by fragments. Annealed tough pitch copper was selected for an
appropriate liner material. The penetration depth increased by 50 %, compared to
current LSCs. The detonation effects of the explosive change the liner into the jet
and slug. But, the case is also transformed into fragments, which creates
undesirable collateral damage. Polyvinyl chloride was adopted as the case
material to reduce damage by fragments. No fragments were generated when the
newly-designed LSCs were shot. For the simulation of the jet formation and
target penetration, the Euler solver of AUTODYN on the two-dimension planar
was selected, and the liner, case and explosive were filled on the Euler solver
plane. The calculation results gave us significant information about determining
the optimal stand-off distance and allow us to design effective cutting plans for
use with LSCs.
Keywords: linear shaped charges, target penetration, stand-off distance, Euler
solver.
1 Introduction
Liner shaped charges (LSCs) have the ability for the instantaneous cutting of the
structures and have been used in the separation of the first and second stages, and
the command destruction of solid rocket boosters (SRB) in the H-2A rocket. In
the field of the military, LSCs are used the separation of the capsule in the anti-
Keywords
linear shaped charges, target penetration, stand-off distance, Euler
solver.
Related Book
Other papers in this volume
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