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The effect of bullet yaw on the threat level : a numerical investigation
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Tomczyk, K., Landheer, D., Williams, T., Bailey, S., Skelton, V., Warnett, Jason M., Attridge, Alex and Williams, M. A. (Mark A.) (2014) The effect of bullet yaw on the threat level : a numerical investigation. In: Personal Armour Systems Symposium PASS2014, Cambridge, UK, 8-12 Sep 2014. Published in: Proceedings of the Personal Armour Systems Symposium pp. 1-10.
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Official URL: http://pass2014.com
Abstract
It is well known that yaw can affect the penetrative power of armour piercing rounds. To
investigate this effect purely experimentally is difficult because the typical ballistic set up does not
allow control over the yaw angle of the projectile. In this study, a numerical model is used
complementing ballistic experiments for a range of yaw angles. For the projectile, a validated
computer model of the 30-06 7.62 x 63mm AP M2 round was selected. Surrogate targets were used for
a qualitative assessment of the phenomenon. The utilized target is a flat rectangular tile. To encourage
yaw in the experimental tests, targets were positioned at relatively close distance to the breach and
impact velocity was chosen lower than typical for the projectile. Both ensure that the bullet does not
reach stable flight therefore yaw is present. From the experiments, a range of impact velocities and
yaw angles was chosen and each of the test conditions simulated. The decrease in bullet velocity ΔV
was calculated from high speed video footage captured during tests and compared to bullet ΔV in
simulation. Strain condition, predicted damage and negative pressure output from simulation were
investigated in pursue of yaw effects on threat level. The results of this study can help in the
interpretation of physical test results and ultimately can contribute to making the performance of
armour systems more robust.
Item Type: | Conference Item (Paper) | ||||
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Alternative Title: | |||||
Subjects: | U Military Science > U Military Science (General) | ||||
Divisions: | Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group) | ||||
Library of Congress Subject Headings (LCSH): | Ballistics, Body armor | ||||
Journal or Publication Title: | Proceedings of the Personal Armour Systems Symposium | ||||
Official Date: | 2014 | ||||
Dates: |
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Page Range: | pp. 1-10 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Date of first compliant deposit: | 28 July 2016 | ||||
Date of first compliant Open Access: | 28 July 2016 | ||||
Conference Paper Type: | Paper | ||||
Title of Event: | Personal Armour Systems Symposium PASS2014 | ||||
Type of Event: | Conference | ||||
Location of Event: | Cambridge, UK | ||||
Date(s) of Event: | 8-12 Sep 2014 |
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