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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

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Abstract

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.

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Authors and Affiliations

  1. Department of Mechanical, Electrical and Computer Engineering, Science and Research Branch, Islamic Azad University, Daneshgah Sq., Sattari St., Tehran, Iran

    Hossein Mehmannavaz, Sadegh Rahmati & Mohammad Najafi

  2. Mechanical Engineering Department, Tarbiat Modares University, Jalal Al-Ahmad St., Tehran, Iran

    Gholmhossein Liaghat

  3. Mechanical Engineering Department, Malek Ashtar Industrial University, Lavizan, Tehran, Iran

    Hamid Fazeli

Authors
  1. Hossein Mehmannavaz
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  2. Gholmhossein Liaghat
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  3. Sadegh Rahmati
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  4. Mohammad Najafi
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  5. Hamid Fazeli
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Correspondence to Gholmhossein Liaghat.

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Technical Editor: Paulo de Tarso Rocha de Mendonça, Ph.D.

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Mehmannavaz, H., Liaghat, G., Rahmati, S. et al. 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. J Braz. Soc. Mech. Sci. Eng. 41, 336 (2019). https://doi.org/10.1007/s40430-019-1828-2

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  • DOI: https://doi.org/10.1007/s40430-019-1828-2

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