Abstract
The paper describes a work focused on the process of perforation of aluminum sheet. A numerical investigation has been carried out to analyze in details the perforation process subjected to normal impact by different nose shapes of projectiles. The perforation process has been simulated by the application of 3D analysis using IMPACT dynamic FE program suite. The comparison on failure modes depending on the projectile nose shape have been studied and evaluated. An appropriate constitutive relation was applied to describe the material behavior of the aluminum sheet. The study covered different failure modes including petalling, plug ejection and circumference necking of perforated aluminum sheet according to different level of impact velocity ranging from 100 m/s to 600 m/s. In this investigation, a special attention will be given on the deformation and failure.
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Recommended by Associate Editor Chang-Wan Kim
Mohd Norihan Ibrahim is a lecturer at Department Engineering Mechanics, Universiti Tun Hussein Onn Malaysia (UTHM). He received his bachelor degree in mechanical engineering from the University of Plymouth, UK, and completed his M.Eng (Mechanical) from UTHM and he is currently studying his
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Ibrahim, M.N., Siswanto, W.A. & Zaidi, A.M.A. Numerical study of 2024 T3 aluminum plates subjected to impact and perforation. J Mech Sci Technol 28, 4475–4482 (2014). https://doi.org/10.1007/s12206-014-1015-4
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DOI: https://doi.org/10.1007/s12206-014-1015-4