Applied Mathematics and Mechanics (English Edition) ›› 2021, Vol. 42 ›› Issue (12): 1733-1742.doi: https://doi.org/10.1007/s10483-021-2799-7

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Low-velocity impact of rectangular foam-filled fiber metal laminate tubes

Jianxun ZHANG1,2, Haoyuan GUO1   

  1. 1. State Key Laboratory for Strength and Vibration of Mechanical Structures, School of Aerospace Engineering, Xi'an Jiaotong University, Xi'an 710049, China;
    2. Jiangsu Key Laboratory of Engineering Mechanics, Southeast University, Nanjing 211189, China
  • Received:2021-06-15 Revised:2021-10-08 Published:2021-11-23
  • Contact: Jianxun ZHANG ,E-mail:jianxunzhang@mail.xjtu.edu.cn
  • Supported by:
    the National Natural Science Foundation of China (Nos. 11872291 and 11972281), the Jiangsu Key Laboratory of Engineering Mechanics, Southeast University, the Fundamental Research Funds for the Central Universities (No. LEM21B01), the Key Laboratory of Impact and Safety Engineering (Ningbo University), Ministry of Education (No. cj202002), and the Natural Science Basic Research Plan in Shanxi Province of China (No. 2020JM-034)

Abstract: Through theoretical analysis and finite element simulation, the low-velocity impact of rectangular foam-filled fiber metal laminate (FML) tubes is studied in this paper. According to the rigid-plastic material approximation with modifications, simple analytical solutions are obtained for the dynamic response of rectangular foam-filled FML tubes. The numerical calculations for low-velocity impact of rectangular foam-filled FML tubes are conducted. The accuracy of analytical solutions and numerical results is verified by each other. Finally, the effects of the metal volume fraction of FMLs, the number of the metal layers in FMLs, and the foam strength on the dynamic response of foam-filled tubes are discussed through the analytical model in details. It is shown that the force increases with the increase in the metal volume fraction in FMLs, the number of the metal layers in FML, and the foam strength for the given deflection.

Key words: fiber metal laminate (FML) tube, metal foam, low-velocity impact, energy absorption

2010 MSC Number: 

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