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Volume 37 Issue 4
Sep 2023
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Chinese Journal of High Pressure Physics  > 2023  >  37(4): 044103.
TIAN Xinyu, DENG Qingtian, LI Xinbo, SONG Xueli, WANG Guosheng, WEN Jinpeng. Quasi-Static Compression Stability and Enegy Absorption Performance of Cellular I-Beam[J]. Chinese Journal of High Pressure Physics, 2023, 37(4): 044103. doi: 10.11858/gywlxb.20230657
Citation: TIAN Xinyu, DENG Qingtian, LI Xinbo, SONG Xueli, WANG Guosheng, WEN Jinpeng. Quasi-Static Compression Stability and Enegy Absorption Performance of Cellular I-Beam[J]. Chinese Journal of High Pressure Physics, 2023, 37(4): 044103. doi: 10.11858/gywlxb.20230657
shu

Quasi-Static Compression Stability and Enegy Absorption Performance of Cellular I-Beam

doi: 10.11858/gywlxb.20230657
  • 1.

    School of Science, Chang’ an University, Xi’an 710064, Shaanxi, China

  • 2.

    Vehicle Performance Center, Zhejiang Geely New Energy Commercial Vehicles Group Co., Ltd., Hangzhou 311228, Zhejiang, China

  • 3.

    Institute of Systems Engineering, China Academy of Engineering Physics, Mianyang 621999, Sichuan, China

  • Received Date: 05 May 2023
  • Rev Recd Date: 22 May 2023
  • Accepted Date: 12 Jul 2023
  • Issue Publish Date: 01 Sep 2023
    Abstract
  • Lightweight cellular I-beams have excellent energy absorption characteristics under external loads. This paper proposes to use cell web instead of solid web to design the I-beam structure of cell web. Based on the combination of square cell, honeycomb cell, concave cell and round cell, and square, honeycomb, concave and circular web openings, the configuration of this paper was designed. The effects of different sibling type and web opening type on compression performance and energy absorption of I-beam were studied by experiments and finite element analysis. The results show that cell types and web hole types have significant effects on the compression performance of I-beam. The ultimate bearing capacity of square cell I-beam is larger, while honeycomb cell I-beam has the best energy absorption characteristics, while circular cell I-beam has poor bearing capacity and energy absorption performance. The negative Poisson’s ratio cell can significantly change the deformation mode of thin-walled I-beam, and the concave cell can effectively inhibit the dislocation extrusion instability trend of I-beam on both sides of the web.

     

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