Validation Of FE Models Of Bullet Impact On
High Strength Steel Armors
Author(s)
P. Siriphala, T. Veeraklaew, W. Kulsirikasem
& G. Tanapornraweekit
Abstract
This paper presents a validation of a finite element (FE) model to predict the
performance of high strength steel armor against the penetration from M193
bullets. A series of perforation tests were performed on an Armox 600T steel
plate. The velocity of bullet was measured using an electronic measuring system.
A propellant weight of the bullet was calibrated before the test so as to obtain a
desired bullet velocity which meets the test standard. The test results show that
only one shot from all tests penetrated a 7 mm of Armox 600T. Generally, a
7mm of Armox 600T is sufficient to withstand the threat level specified in the
test standard. An Eulerian FE solver was employed to simulate behavior of a
bullet impact. A series of FE analyses varying Eulerian cell sizes were performed
in this study so as to obtain converge results. It is found that an element size of
0.035 mm is required for this type of modeling in order to capture a realistic
interaction between bullet and armor plate. The FE results of the model with
0.035 mm of cell size conform to the test results in terms of crater depth and
crater diameter on the test armors.
Keywords: bullet, impact, crater, Armox 600T, finite element.
Keywords
bullet, impact, crater, Armox 600T, finite element
Related Book
Other papers in this volume
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