Experimental and numerical assessment of impact resistance of FMLs including one rubber layer

Fiber metal laminates have lately attracted considerable interest due to their diverse use in industrial sectors. Indeed, FMLs are virtually applied by combining both the metal and composite layers in order to achieve better outcomes. The preference of FML over metal or composite has been verified i...

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Bibliographic Details
Published in:Journal of the Brazilian Society of Mechanical Sciences and Engineering 2020-09, Vol.42 (9), Article 455
Main Authors: Khajeh Arzani, Hamid, Kabiri Ataabadi, Abdulreza, Chaparian, Yoosof
Format: Article
Language:English
Subjects:
Aluminum base alloys
Butadiene
Energy dissipation
Engineering
Fiber-metal laminates
Gas guns
Impact resistance
Impact tests
Kinetic energy
Mechanical Engineering
Numerical analysis
Projectiles
Rubber
Rubber layers
Technical Paper
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Summary:Fiber metal laminates have lately attracted considerable interest due to their diverse use in industrial sectors. Indeed, FMLs are virtually applied by combining both the metal and composite layers in order to achieve better outcomes. The preference of FML over metal or composite has been verified in many studies. The preliminary objective of the present study, however, is to make attempts to evaluate the influence of rubber layer on FML impact resistance once subjected to high-velocity impact. To this end, a numerical analysis is administered following an experiment. In this regard, the applied materials consist of 2024-T3 aluminum alloy, woven glass/epoxy prepreg and nitrile butadiene rubber. The steel projectile for impact tests was geometrically cylinder and flat-ended. It is noteworthy that all tests were run by a high-speed gas gun, and the numerical analysis was carried out in LS-DYNA software. Ultimately, the obtained results indicated that by inserting a rubber layer among the laminates, aluminum layer can bend further, and more kinetic energy can be dissipated from the projectile. Moreover, the special perforation energy and ballistic limit velocity, V 50 , increased dramatically.
ISSN:1678-5878
1806-3691
DOI:10.1007/s40430-020-02520-1