Volume 19, Issue 6 (June 2019)                   Modares Mechanical Engineering 2019, 19(6): 1529-1538 | Back to browse issues page

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1- Mechanical & Aerospace Engineering Department, Malek-e-Ashtar University of Technology, Isfahan, Iran
2- Mechanical Engineering Department, Malek-e-Ashtar University of Technology, Isfahan, Iran , a.kabiri.at@mut-es.ac.ir
Abstract:   (3135 Views)
The preference of fiber–metal laminate over metal and composite in lots of In the present study, the main goal is to investigate an idea for impact resistance improvement of laminates under high-velocity impact by numerical analysis and experiment. Due to the existence of various types of mechanisms for dissipating kinetic energy of projectile in contact with the target, in this research, it has been concentrated on one of them and by adding a rubber layer into AL/GL/GL/AL laminate, it has been allowed more bending to the aluminum layer thereby offering higher dissipating kinetic energy and increased special perforation energy. Materials used in this study are 2024-T3 aluminum alloy, woven glass/epoxy prepreg and Nitrile butadiene rubber (NBR). All of the tests have been done by a high-speed gas gun in Tarbiat Modarres University and numerical analysis is done with Ls Dyna software. With numerical analysis, it is possible to achieve results such as contact force and different energies variations during the impact of the projectile cannot be achieved by The results show that by adding a rubber layer into the laminates, the aluminum layer bend more so more kinetic energy can be dissipated from the projectile. Hence, special perforation energy and ballistic velocity are increased
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Article Type: Original Research | Subject: Composites
Received: 2018/05/18 | Accepted: 2018/12/23 | Published: 2019/06/1

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