The Influence of Rapid Prototyping Technology on Optimization of Automobile Energy-Absorbing Box

Abstract:

To optimize the structure of the automobile energy-absorbing box and obtain the energy-absorbing box structure with improved impact energy absorption property, and apply it to the structure of automobile energy absorption box, test piece of crystal lattice structure and polycrystalline structure of energy-absorbing box are designed via rapid prototyping technology in this study Four different crystal lattice structures of triangle, quadrangle, hexagon, and hollow lattice structure are designed respectively. And their mechanical properties, impact energy absorption properties, and impact properties are tested. The results show that the wall thickness of the four lattices differs greatly when the quality of all crystal lattice structures is 17.8g. The compressive strength and yield strength of the hollow crystal lattice structure test piece are the largest, reaching 51.1Mpa and 69.2Mpa respectively. The maximum compression modulus of the hexagonal lattice test piece is 1462.1, followed by the hollow crystal lattice structure test piece, whose compression modulus value is 1341. The minimum absorption energy of the hollow lattice structure energy-absorbing box test piece is 2847.99J. The minimum impact value of the hollow lattice structure energy-absorbing box test piece is 69.251KN, and the impact value of triangle structure energy-absorbing box test piece is 118.11 KN. The effective impact time of the drop weight test of the hollow lattice structure energy-absorbing box test piece is only 0.08s, the peak value of the impact acceleration is 28.96g, and the maximum load of the test piece is 26.95KN. According to the comprehensive indicators, the hollow lattice structure energy-absorbing box test piece designed based on rapid prototyping technology has improved the impact energy absorption property of the automobile energy-absorbing box.

• Periodical: Key Engineering Materials (Volume 871)
• Pages: 153-158
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.871.153
• Online since: January 2021
• Authors: You Tong Li, Hui Wang*
• Keywords: Automobile Energy-Absorbing Box, Impact Energy Absorption Property, Lattice Unit, Rapid Prototyping Technology

References

[1] V. Žuraulis, G. Garbincius, P. Skackauskas, et al. Experimental Study of Winter Tyre Usage According to Tread Depth and Temperature in Vehicle Braking Property. Iranian Journal of Science and Technology-Transactions of Mechanical Engineering. 44(2020) 83-91.

DOI: 10.1007/s40997-018-0243-0

[2] Q. Wu, L. Ma, Q. Liu, et al. Impact response and energy absorption of human skull cellular bones. Journal of the Mechanical Behavior of Biomedical Materials. 81(2018)106-119.

DOI: 10.1016/j.jmbbm.2018.02.018

[3] B. Haworth, D. Chadwick, L. Chen, et al. Thermoplastic composite beam structures from mixtures of recycled HDPE and rubber crumb for acoustic energy absorption. Journal of Thermoplastic Composite Materials. 31(2018) 119-142.

DOI: 10.1177/0892705716681836

[4] N.S.B. Yusof, S.M. Sapuan, M.T.H. Sultan, et al. Design and materials development of automotive crash box: a review. Ciência & Tecnologia Dos Materiais. 29(2017) 129-144.

DOI: 10.1016/j.ctmat.2017.09.003

[5] J. Liu, B. Jalalahmadi, Y. B. Guo, et al. A review of computational modeling in powder-based additive manufacturing for metallic part qualification. Rapid Prototyping Journal. 24(2018) 1245-1264.

DOI: 10.1108/rpj-04-2017-0058

[6] L. Beltrametti, A. Gasparre. Industrial 3D printing in Italy. International Journal of Manufacturing Technology and Management. 32(2018) 43-64.

DOI: 10.1504/ijmtm.2018.089467