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Volume 33 Issue 6
Nov 2019
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Chinese Journal of High Pressure Physics  > 2019  >  33(6): 064102.
ZHAO Zhuan, LI Shiqiang, LIU Zhifang. Stress Waves Propagation in Layered Graded CellularMaterials under Dynamic Crush Loading[J]. Chinese Journal of High Pressure Physics, 2019, 33(6): 064102. doi: 10.11858/gywlxb.20190724
Citation: ZHAO Zhuan, LI Shiqiang, LIU Zhifang. Stress Waves Propagation in Layered Graded CellularMaterials under Dynamic Crush Loading[J]. Chinese Journal of High Pressure Physics, 2019, 33(6): 064102. doi: 10.11858/gywlxb.20190724
shu

Stress Waves Propagation in Layered Graded CellularMaterials under Dynamic Crush Loading

doi: 10.11858/gywlxb.20190724
  • 1.

    Department of Architecture and Civil Engineering, Yuncheng Polytechnic College, Yuncheng 044000, China

  • 2.

    Institute of Applied Mechanics, College of Mechanical and Vehicle Engineering,Taiyuan University of Technology, Taiyuan 030024, China

  • Received Date: 29 Jan 2019
  • Rev Recd Date: 21 Feb 2019
    Abstract
  • The theoretical mode of velocity attenuation of rigid mass and the stress wave propagation in layered cellular materials under dynamic impact loading has been proposed based on the 1-D wave theory and the dynamic response process of a foam rod strike by a rigid mass has been studied. A finite element (FE) validation has been conducted by employing ANSYS/LS-DYNA software, agreeing well with the theoretical results. The compared results show that the triple layered graded foam material has better impact reduction and energy absorption capacity than the uniform foam with the same mass. Due to the reflected wave and the strain hardening effects not considered in the theoretical model, there are some acceptable errors between the theoretical and FE results.

     

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    • References(11)
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