Volume 19, Issue 5 (May 2019)                   Modares Mechanical Engineering 2019, 19(5): 1253-1263 | Back to browse issues page

‎ 20.1001.1.10275940.1398.19.5.7.9

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Moslemi Petrudi A, Vahedi K, Kamyab M, Moslemi Petrudi M. Numerical and Experimental Study of Oblique Penetration of a Blunt Projectile into Ceramic- Aluminum Target. Modares Mechanical Engineering 2019; 19 (5) :1253-1263
URL: http://mme.modares.ac.ir/article-15-20854-en.html
Numerical and Experimental Study of Oblique Penetration of a Blunt Projectile into Ceramic- Aluminum Target
A. Moslemi Petrudi1 , Kh. Vahedi * 2, M.H. Kamyab1 , M.A. Moslemi Petrudi3
1- Mechanical Engineering Department, Engineering Faculty, University of Imam Hussein (AS), Tehran, Iran
2- Mechanical Engineering Department, Engineering Faculty, University of Imam Hussein (AS), Tehran, Iran , khvahedi@ihu.ac.ir
3- Mechanical Engineering Department, Mechanical Engineering Faculty, University Amirkabir, Tehran, Iran
Abstract:   (4337 Views)

Penetration into ceramic-aluminum targets is of prime importance for researchers in defense and non-defense industries. In this study, the effect of a blunt projectile having a specified speed and penetrating into a ceramic-aluminum target at angles of 0, 15, 30, and 45 degrees is investigated. In this research, 8 experiments were carried out at Ballistic Laboratory of Imam Hossein University and the design of the experiments was carried out in such a way that the facilities of the laboratory could be used. The results of the study showed that by increasing the angle of obliquity, is decreased substantially in ceramic-aluminum target, and when the angle of obliquity is increased beyond a certain limit, will ricochet. Also, in this study, numerical investigation was performed, using Autodyne software. In this numerical simulation, the impact of the blunt projectile at 700 m/s on ceramic-aluminum target was carried out to determine the penetration depth into the given target. The blunt projectile penetration was simulated with oblique carbide plates supplemented with aluminum 2024-T3 and the residual velocity and mass values of the projectile were determined at the exit of the combined target. The projectile was assumed to be rigid and the Johnson–Holmquist structural model was used to describe ceramic behavior and Johnson-Cook material model was used for projectile and target. The results of the experiments and numerical simulation were compared and there was a good agreement between these two modes of investigations, indicating the validity and accuracy of simulation assumptions.
 

Keywords: Ceramics, Penetration, Armor Ceramic-Aluminum, Blunt Projectile, Autodyn Software
Full-Text [PDF 3017 kb]   (3978 Downloads)    
Article Type: Original Research | Subject: Impact Mechanics
Received: 2018/05/14 | Accepted: 2019/01/12 | Published: 2019/05/1
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