Volume 42 Issue 1
Jan.  2023
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LIU Yu, HAO Qi, TIAN Yu'nan, CUI Hongwei. Experiment and Application Research of Arc Side Structure with Negative Poisson's Ratio[J]. Mechanical Science and Technology for Aerospace Engineering, 2023, 42(1): 159-164. doi: 10.13433/j.cnki.1003-8728.20200610
Citation: LIU Yu, HAO Qi, TIAN Yu'nan, CUI Hongwei. Experiment and Application Research of Arc Side Structure with Negative Poisson's Ratio[J]. Mechanical Science and Technology for Aerospace Engineering, 2023, 42(1): 159-164. doi: 10.13433/j.cnki.1003-8728.20200610

Experiment and Application Research of Arc Side Structure with Negative Poisson's Ratio

doi: 10.13433/j.cnki.1003-8728.20200610
  • Received Date: 2021-04-19
  • Publish Date: 2023-01-25
  • Taking an arc-side negative Poisson's ratio structure as the research object, the static compression was completed, the deformation and load data of the analysis test and simulation were compared. The peak error of the test and simulation bearing capacity was small, the overall deformation form was basically the same, and the model is reliable. Based on this structure, a filling core was established and filled in the front-end structure of a small electric vehicle for frontal collision application research. The difference between the two filling methods of the negative Poisson's ratio structure at the front end and the rear end of the longitudinal beam was analyzed by comparing the parameters of B-pillar acceleration, energy absorption, front-end collapse, and cab intrusion, and the traditional structure in the post-filling mode, the advantages and disadvantages of the impact resistance effect were compared. The results show that the rear filling method of the longitudinal beams has a superior impact resistance application effect than the front filling method. After the rear end of the arc-edge negative Poisson's ratio structure is filled, it can obtain lower acceleration peaks and less room invasion volume than the traditional structure.
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