The Effects of Interfacial Connection Condition on the Characteristics of Aluminum/CFRP Hybrid Tube under Transverse Quasi-static Loading 


Vol. 22,  No. 6, pp. 1761-1773, Jun.  2021
10.1007/s12221-021-0498-8


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  Abstract

Considering the double requirements of performance and cost, the metal-carbon fiber reinforced polymer (CFRP) tubes, which combine the benefits of the high specific stiffness of the CFRP and the stable deformation of the metal, is becoming an important form of energy absorption structure. This paper investigated the effects of interfacial connection condition on the damage behavior and energy absorption characteristics of an Al/CFRP hybrid tube under three point bending loading by simulation and experiment. Four different interfacial connection conditions, which were caused by surface treatment of Al tube and changing the connection mode between Al tube and CFRP tube, were studied. Based on the experimental results, the SEA value of hybrid tube under surface treatment is 3 % higher than that of hybrid tube without surface treatment, and the SEA value of the secondary bonding hybrid tube is increased by 10.5 %, compared with that of the sleeve connected hybrid tube. Three-point bending simulation model based on Hashin셲 damage initiation criterion and energy based damage evolution scheme is carried out. The interfacial connection conditions are simulated by setting different contact settings. The results of simulation and experiment are consistent on the force displacement curve and the strain nephogram, which proves the validity of the finite element model. Through the analysis of the stress nephogram of the Al layer and the CFRP layer which are closest to the interface layer, the influence of the interface connection conditions on the energy absorption of the hybrid tube is further analyzed. The results showed that the energy absorption of the hybrid tube is affected by the interaction between heterogeneous materials and increases with the increase of the interfacial adhesion strength. The present contribution improves the energy absorption of the hybrid tube, which is applied to the energy absorption device of the automobile, and provides a method to improve the bonding strength between heterogeneous materials.

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  Cite this article

[IEEE Style]

T. E. o. I. C. C. o. t. C. o. A. H. T. u. T. Q. Loading, "The Effects of Interfacial Connection Condition on the Characteristics of Aluminum/CFRP Hybrid Tube under Transverse Quasi-static Loading," Fibers and Polymers, vol. 22, no. 6, pp. 1761-1773, 2021. DOI: 10.1007/s12221-021-0498-8.

[ACM Style]

The Effects of Interfacial Connection Condition on the Characteristics of Aluminum/CFRP Hybrid Tube under Transverse Quasi-static Loading. 2021. The Effects of Interfacial Connection Condition on the Characteristics of Aluminum/CFRP Hybrid Tube under Transverse Quasi-static Loading. Fibers and Polymers, 22, 6, (2021), 1761-1773. DOI: 10.1007/s12221-021-0498-8.

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