Theoretical, numerical and experimental analysis of bimetallic Cu–Al shaped charge’s liners and its influence on the penetration depth and the crater diameter of steel targets

Shaped charges are used widely to penetrate into targets. The destruction level of them is measured by the depth of penetration profile and the diameter of the penetration profile crater. Changing the liner or duplicate its materials affects the rate of destruction (destruction level). It was report...

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Bibliographic Details
Published in:Journal of the Brazilian Society of Mechanical Sciences and Engineering 2019-08, Vol.41 (8), p.1-10, Article 336
Main Authors: Mehmannavaz, Hossein, Liaghat, Gholmhossein, Rahmati, Sadegh, Najafi, Mohammad, Fazeli, Hamid
Format: Article
Language:English
Subjects:
Aluminum
Bimetals
Copper
Craters
Destruction
Engineering
Linings
Mechanical Engineering
Nickel
Penetration depth
Shaped charges
Technical Paper
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Summary:Shaped charges are used widely to penetrate into targets. The destruction level of them is measured by the depth of penetration profile and the diameter of the penetration profile crater. Changing the liner or duplicate its materials affects the rate of destruction (destruction level). It was reported that copper liner results in greater penetration profile depth and aluminum liner results in a larger crater diameter. In this research, first, the penetration profile of a copper liner shaped charge is theoretically and numerically analyzed using Autodyn software and compared to experimental ones which shows an acceptable agreement. Then, using the same process, the numerical solution of aluminum, nickel and bimetallic copper–aluminum and copper–nickel liners is performed. Comparing the experimental and numerical results, it can be calculated that the copper–aluminum liners have a good and proper penetration profile depth and crater diameter. The results are presented, discussed and commented upon.
ISSN:1678-5878
1806-3691
DOI:10.1007/s40430-019-1828-2