%0 Journal Article
%T Influence of impactor nature, mass, size and shape on ballistic resistance of mild steel and Armox 500£¿T steel
%A Mohd Ashraf Iqbal
%A Rupali Senthil
%A Senthil Kasilingam
%J International Journal of Protective Structures
%@ 2041-420X
%D 2019
%R 10.1177/2041419618807493
%X This study is based on the finite element investigation of the response of mild steel and Armox 500£¿T steel targets subjected to macro- and micro-size impactor. The simulations were carried out on target against penetrator with varying masses, sizes, shapes and different nature (rigid and deformable projectiles) using ABAQUS/Explicit. The material parameters of Johnson¨CCook elasto-viscoplastic model were employed for predicting the behaviour of the target. The impact resistance of mild steel and Armox 500£¿T steel plates has been studied against flat nose having masses of 4, 8, 13.5, 27, 32 and 64£¿kg. The influence of temperature has also been studied numerically for particular penetrator. To study the influence of nature of projectile, the simulations were performed on mild steel and Armox 500£¿T steel targets against deformable 2024 aluminium flat, hardened steel flat and hardened steel conical impactors at 950 and 150£¿m/s incidence velocities. Also, the simulations were carried out on given target against 7.62 and 12.7£¿mm armour piercing incendiary ogival nose projectiles. The performance of (4.7£¿+£¿4.7£¿mm) 9.4-mm-thick equivalent mild steel and Armox 500£¿T steel plate in combination has also been studied against 7.62 armour piercing incendiary ogival nose projectiles at 950 and 150£¿m/s incidence velocities. The study thus presents a detailed investigation in terms of penetration, perforation and failure mechanism of mild steel and Armox 500£¿T steel target and leads to some important conclusions pertaining to the force and resistance offered by the target
%K Finite element analysis
%K Armox 500£¿T steel
%K mild steel
%K flat nose
%K conical nose
%K ogive nose impactor
%U https://journals.sagepub.com/doi/full/10.1177/2041419618807493