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Volume 36 Issue 2
Apr 2022
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Chinese Journal of High Pressure Physics  > 2022  >  36(2): 024101.
CHANG Chao, MA Zhen, CHU Jingquan, HOU Jianfeng, ZHANG Weiwei. Research on Compression Deformation of Hollow Lattice Structure Based on Additive Manufacturing[J]. Chinese Journal of High Pressure Physics, 2022, 36(2): 024101. doi: 10.11858/gywlxb.20210885
Citation: CHANG Chao, MA Zhen, CHU Jingquan, HOU Jianfeng, ZHANG Weiwei. Research on Compression Deformation of Hollow Lattice Structure Based on Additive Manufacturing[J]. Chinese Journal of High Pressure Physics, 2022, 36(2): 024101. doi: 10.11858/gywlxb.20210885
shu

Research on Compression Deformation of Hollow Lattice Structure Based on Additive Manufacturing

doi: 10.11858/gywlxb.20210885
  • 1.

    Department of Mechanics, School of Applied Science, Taiyuan University of Science and Technology, Taiyuan 030024, Shanxi, China

  • 2.

    Shanxi Diesel Engine Industry Co., Ltd., Datong 037036, Shanxi, China

  • Received Date: 29 Sep 2021
  • Rev Recd Date: 13 Oct 2021
  • Accepted Date: 17 Jan 2022
    Abstract
  • Lattice structure is widely used in lightweight components and pressure-bearing structures due to its light weight, good pressure-bearing performance, and high specific stiffness. In this study, a hollow lattice structure was manufactured by selected laser melting (SLM) technology. A combination of quasi-static compression experiment and finite element numerical simulation was used to study the failure and deformation modes of hollow lattice structures containing hollow micropillars with different sizes during compression deformation. It is shown that there is no obvious collapse and instability for the hollow lattice structure during the compression process. The failure of the node induces the deformation of the micro-pillars in structure, which in turn causes the overall failure. The deformation mode is uniform overall structure. However, when the wall thickness of hollow structure is small, the boundary layer will deform first due to insufficient rigidity. Increasing the size of the hollow tube could increase the rigidity of the structure.

     

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