Engineering Transactions, 64, 3, pp. 351-366, 2016
10.24423/engtrans.379.2016

A Study of the Ballistic Limit of AA2024-T351 Sheets Impacted by Spherical and Cubical Compact Projectiles

Tom DE VUYST
Brunel University, London
United Kingdom

Rade VIGNJEVIC
Brunel University, London
United Kingdom

Adrian AZORIN ALBERO
Cranfield University
United Kingdom

Kevin HUGHES
Brunel University, London
United Kingdom

James C. CAMPBELL
Brunel University, London
United Kingdom

Nenad DJORDJEVIC
Brunel University, London
United Kingdom

This paper presents the results of an investigation of the ballistic limits and failure modes of AA2024-T351 sheets impacted by spherical and cubical projectiles. The investigation included a series of impact experiments and numerical simulations. The lowest ballistic limit (225 m/s) was observed for the spherical projectile. In the cube impacts the ballistic limit was 254 m/s. With the aid of the finite element models it was possible to develop a better understanding of the test results and explain that the observed differences in the impact responses are due to the combination of the localised deformation near the projectile impact point and the resulting global, dishing, deformation.
Keywords: ballistic impact; compact projectiles; cube projectiles; failure mode
Full Text: PDF
Copyright © Polish Academy of Sciences & Institute of Fundamental Technological Research (IPPT PAN).

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DOI: 10.24423/engtrans.379.2016