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Alekseevskii-Tate revisited: An extension to the modified hydrodynamic theory of long rod penetration

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Abstract

The modified hydrodynamic theory of long rod penetration into semi-infinite targets was established independently by Alekseevskii and Tate over forty years ago and since then many investigators contributed much to the development of the high speed penetration mechanics. However, in all the models proposed so far, the target resistance R t is not well defined and usually determined by adjusting it until the predicted depth of penetration comes to an agreement with experimental data. In this paper, assumptions are first made about particle velocity and pressure profiles together with response regions in the target and then an extension is made to the modified hydrodynamic theory of long rod penetration into semi-infinite targets, in which R t has explicit form and is dependent on penetration velocity as well as thermo-mechanical properties of target material. The present model is compared with long rod penetration tests for different material combinations. It transpires that the present model predictions are in good agreement with the experimental data and numerical simulations in terms of penetration depth although many assumptions and simplifications are introduced into the paper.

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Authors and Affiliations

  1. CAS Key Laboratory for Mechanical Behavior and Design of Materials, University of Science and Technology of China, Hefei, 230027, China

    Bin Lan & HeMing Wen

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  1. Bin Lan
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  2. HeMing Wen
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Correspondence to HeMing Wen.

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Lan, B., Wen, H. Alekseevskii-Tate revisited: An extension to the modified hydrodynamic theory of long rod penetration. Sci. China Technol. Sci. 53, 1364–1373 (2010). https://doi.org/10.1007/s11431-010-0011-x

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