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1993
Conference Paper
Titel
Statistical Investigation on Geometrical Size and Shape Distributions of Natural Fragments
Alternative
Statistische Untersuchung der geometrischen Größen- und Formenverteilung von natürlichen Splittern
Abstract
The terminal ballistic performance of an HE-shell is usually characterized by the spatial distributions of number, mass and velocity of the produced natural fragments and is described in terms of vulnerability probabilities. However, the efficiency of a single fragment depends on its geometrical shape and size, its orientation at impact and the striking velocity. This impact velocity is also interrelated to the geometrical size, because the external ballistic resistance is determined by the cross section of the flying fragments. Therefore, a comprehensive characterization of the performance of shells requires besides mass/number distributions descriptions of fragment size and shape distributions. As an example, lengths, widths, and thicknesses were determined for recovered fragments of statically exploded 155-m HE-shells. The statistical evaluation of the results allowed to derive formulas which describe the distributions of the geometrical dimensions, aspect ratios, and mean cross se ctions correlated to fragment mass and frequency. It is shown that the same formulas hold for the cases of fragments from 30-mm and 35-mm shells.
Language
English
Tags
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155-m shell
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155-mm-HE-Granate
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aspect ratio
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Breitenverteilung
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cross section distribution
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Dickenverteilung
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Formenverteilung
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Größenverteilung
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Längenverteilung
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length distribution
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mass classes
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Massenklassen
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natural fragments
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natürliche Splitter
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Querschnittsverteilung
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Schlankheitsgrad
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shape distribution
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size distribution
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thickness distribution
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width distribution