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Acta Mechanica Sinica

, Volume 35, Issue 4, pp 763–772 | Cite as

Dynamic experimental studies of A6N01S-T5 aluminum alloy material and structure for high-speed trains

  • Zishang Liu
  • Yangyang Yu
  • Zhe Yang
  • Yanpeng WeiEmail author
  • Junshuang Cai
  • Maohui Li
  • Chenguang Huang
Research Paper
  • 57 Downloads

Abstract

In this study, we focus on the dynamic failure property of A6N01S-T5 aluminum alloy use for high-speed trains. The method of split Hopkinson tensile bar (SHTB) and three-dimensional (3D) digital image correlation (DIC) was put forward to find the dynamic mechanical properties and dynamic failure strain of A6N01S-T5 aluminum alloy, and on the basis of this, Johnson–Cook model constitutive parameters and dynamic failure strain parameters were obtained through a series of static and dynamic tests. An important character of this method was that the sandwich structure from the true high-speed train was used in penetration test, followed by the numerical calculation of the same working condition using LS-DYNA. Then we compare the experimental results with simulation results mentioned above in terms of failure morphology in structure and the bullet speed throughout the entire process to verify the accuracy of the parameter. The experimental results provide a data basis for the crash simulation model of high-speed trains, in turn to optimize the structural design and whole efficiency.

Graphical abstract

Keywords

A6N01S-T5 aluminum alloy Dynamic failure strain Constitutive model Dynamic mechanical properties 

Notes

Acknowledgements

This work was supported by the National Department of Science and Technology (Grant 2016YFB1200505).

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Copyright information

© The Chinese Society of Theoretical and Applied Mechanics and Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  • Zishang Liu
    • 1
    • 2
  • Yangyang Yu
    • 3
  • Zhe Yang
    • 2
  • Yanpeng Wei
    • 2
    Email author
  • Junshuang Cai
    • 3
  • Maohui Li
    • 4
  • Chenguang Huang
    • 2
  1. 1.Institute of MechanicsChinese Academy of SciencesBeijingChina
  2. 2.University of Chinese Academy of SciencesBeijingChina
  3. 3.CRRC Qingdao Sifang CO., LTDQingdaoChina
  4. 4.Quartermaster Research Institute of Engineering and TechnologyBeijingChina

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