The Use Of 3D Numerical Simulations For The
Interaction Of Long Rods With Moving Plates
Author(s)
Z. Rosenberg & E. Dekel
Abstract
The use of 3D numerical simulations for terminal ballistics has been very fruitful
during the past decade, with the advancements of 3D codes, as far as accuracy
and computational times are concerned. These simulations enable us to look
more carefully at the interaction of projectiles with targets in real situations
which include oblique impacts, with or without yaw, at stationary and moving
plates. The purpose of the present paper is to demonstrate the usefulness of these
codes for long rods impacting metallic targets for the purpose of designing
reactive armor systems against these rods. Here, we demonstrate how one can
answer several questions regarding this interaction without the need for costly
and complicated experiments. In particular, the issues of rod disruption, erosion
and deflection are highlighted in 3D simulations by changing rod and plate
obliquities and velocities, as well as plate thickness and strength. Several
experimental results are also presented to demonstrate the validity of code
predictions.
Keywords: terminal ballistics, long rods, reactive armor.
1 Introduction
One of the most important issues in the area of armor technologies concerns the
interaction of shaped charge jets and long-rod penetrators with moving plates
(reactive armor). The efficiency of relatively thin steel plates, propelled by an
explosive layer which is detonated by the impacting jet, has been demonstrated
by many workers (see [1-3], for example). Relatively few works have been
published on the interaction of long rods and moving plates, probably because
this is a much less understood phenomenon, (see [4, 5]). We recently published
[6] some of our results on the interaction between a tungsten-alloy rod impacting
Keywords
terminal ballistics, long rods, reactive armor.
Related Book
Other papers in this volume
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