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Buffer capacity of granular matter to impact of spherical projectile based on discrete element method

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Abstract

Granular matter possesses impact-absorbing property due to its energy dissipation character. To investigate the impact-absorbing capacity of granular matter, the discrete element method (DEM) is adopted to simulate the impact of a spherical projectile on to a granular bed. The dynamic responses of the projectile are obtained for both thin and thick granular bed. The penetration depth of the projectile and the first impact peak are investigated with different bed thicknesses and impact velocities. Determining a suitable bed thickness is crucial to the buffering effect of granular matter. The first impact peak is independent of bed thickness when the thickness is larger than the critical thickness.

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Authors and Affiliations

  1. School of civil and Safety Engineering, Dalian Jiaotong University, Dalian, 116028, China

    Ying Yan

  2. State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology, Dalian, 116023, China

    Pengfei Li & Shunying Ji

Authors
  1. Ying Yan
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  2. Pengfei Li
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  3. Shunying Ji
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Correspondence to Shunying Ji.

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Yan, Y., Li, P. & Ji, S. Buffer capacity of granular matter to impact of spherical projectile based on discrete element method. Front. Struct. Civ. Eng. 7, 50–54 (2013). https://doi.org/10.1007/s11709-013-0186-x

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  • DOI: https://doi.org/10.1007/s11709-013-0186-x

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