Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7955008 | Procedia Structural Integrity | 2017 | 8 Pages |
Abstract
The present study focused the effect of aluminium series backing layer on the ballistic resistance of bi-layer ceramic/metal target by means of three dimensional numerical simulation using ANSYS/AUTODYN explicit solver which is cable of modeling and solving the 3D explicit problems. The ceramic and metal layer of bi-layer target was alumina 95% and 1100-H12, 2024-T3, 6061, 7075 aluminium respectively and the impact velocity of ogive nose projectile of 4340 steel was 493, 820 and 1200 m/s. The strength and failure mode of alumina, and steel and aluminium under the projectile impact was computationally modelled by Johnson-Holmiquist (JH-2) model and Johnson-Cook (JC) model respectively. The results shows that ballistic resistance of bi-layer target significantly varied with the aluminium series. 7075 aluminium backing helped the bi-layer target to offer high resistance to the projectile penetration for all the impact velocities.
Related Topics
Physical Sciences and Engineering
Materials Science
Materials Chemistry
Authors
J. Venkatesan, M.A. Iqbal, N.K. Gupta, V. Bratov, N. Kazarinov, F. Morozov,