Journal of Materials Science

, Volume 54, Issue 8, pp 6286–6300 | Cite as

Energy absorption of a bio-inspired honeycomb sandwich panel

  • Ngoc San Ha
  • Guoxing LuEmail author
  • Xinmei Xiang


In this study, a novel bio-inspired honeycomb sandwich panel (BHSP) based on the microstructure of a woodpecker’s beak is proposed. Unlike a conventional honeycomb, the walls of the bio-inspired honeycomb (BH), which is used as the core of a sandwich panel, are made wavy. Finite element simulation shows that under dynamic crushing the proposed BHSPs exhibit superior energy absorption capability compared with the conventional honeycomb sandwich panel (CHSP). In particular, the specific energy absorption (SEA) of the BHSP increases by 125% and 63.7%, respectively, compared with that of the honeycomb sandwich panel with the same thickness core or the same volume core. In addition, a parametric study of the BHSPs is carried out to investigate the influences of the wave amplitude, wave number and core thickness on the energy absorption performance of the BHSPs. It is found that the BH core with a larger wave number and amplitude shows higher SEA. Furthermore, an increase in core thickness can improve the SEA. These results provide guidelines in the design of a lightweight sandwich panel for high-energy absorption capability.



The authors thank the Australian Research Council for the financial support through a Discovery Grant (DP160102612).

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.


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© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Faculty of Science, Engineering and TechnologySwinburne University of TechnologyHawthornAustralia
  2. 2.School of Civil EngineeringGuangzhou UniversityGuangzhouChina

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