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On the penetration depth of a porous striker moving with a hypersonic velocity

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Abstract

By means of numerical simulation in the framework of the 2D axisymmetric problem of continuum mechanics, the penetration of elongated porous strikers into a steel obstacle under hydrodynamic conditions (the velocity of the striker at collision is several kilometers per second) is studied. It is found that the penetration depth of these strikers exceeds the value predicted from the hydrodynamic theory in the approximation of incompressible fluid. This increase is thought of as being associated with a change in the striker penetration mechanism because of formation of an attached shock. A simple model allowing prediction of the piercing power of elongated porous strikers is suggested.

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Authors and Affiliations

  1. Bauman State Technical University, Vtoraya Baumanskaya ul. 5, Moscow, 105005, Russia

    S. V. Fedorov

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  1. S. V. Fedorov
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Correspondence to S. V. Fedorov.

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Original Russian Text © S.V. Fedorov, 2007, published in Zhurnal Tekhnicheskoĭ Fiziki, 2007, Vol. 77, No. 10, pp. 131–134.

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Fedorov, S.V. On the penetration depth of a porous striker moving with a hypersonic velocity. Tech. Phys. 52, 1379–1382 (2007). https://doi.org/10.1134/S1063784207100234

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  • DOI: https://doi.org/10.1134/S1063784207100234

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