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ProSI 2020 Ballistic performance of polyurea-coated thin aluminium plates - numerical study.pdf (859.75 kB)

Ballistic performance of polyurea-coated thin aluminium plates: numerical study

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journal contribution
posted on 2021-03-23, 15:02 authored by Theodosios Stergiou, Konstantinos BaxevanakisKonstantinos Baxevanakis, Anish RoyAnish Roy, Nickolay Sazhenkov, Mikhail A Nikhamkin, Vadim SilberschmidtVadim Silberschmidt
Polyurea elastomer exhibits desirable characteristics for impact mitigation, with varying stoichiometric-dependent properties that can be tailored for specific applications and applied to reinforce existing and new structural components. This numerical study aims to investigate the ballistic performance of polyurea-aluminium laminate targets, employing a user-defined material model for polyurea elastomer developed in a finite-element (FE) framework. The model consists of a rigid spherical projectile impacting the considered target plate. A linear increase in the ballistic performance with a growing thickness of polymer coating was observed and is consistent with previously conducted experimental work. The ballistic limit is increased by some 5% per millimetre of polymer coating thickness, when compared to the monolithic metallic plate. The presence of the polymer layer significantly affects the dynamic response mechanisms of the component during bending due to impact. The result is a more localised deformation compared to global bending of the target.

Funding

Government of Perm Krai, research project No. C-26/790

History

School

  • Mechanical, Electrical and Manufacturing Engineering

Published in

Procedia Structural Integrity

Volume

28

Pages

1258 - 1266

Publisher

Elsevier BV

Version

  • VoR (Version of Record)

Rights holder

© The Authors

Publisher statement

This is an Open Access Article. It is published by Elsevier under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International Licence (CC BY-NC-ND 4.0). Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/

Acceptance date

2020-11-06

Publication date

2020-12-01

Copyright date

2020

ISSN

2452-3216

eISSN

2452-3216

Language

  • en

Depositor

Prof Vadim Silberschmidt. Deposit date: 18 March 2021

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