Crashworthiness analysis of bio-inspired thin-walled tubes based on Morpho wings microstructures

Hamid Nikkhah, Vincenzo Crupi*, Ahmad Baroutaji

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Innovative thin-walled structures, bio-inspired by the microstructure of Morpho wings, were proposed as energy absorbing devices in this study. A finite element model, experimentally validated, was used to investigate the crush responses and deformation modes of 18 multi-layered tubes with different geometrical configurations. The crashworthiness parameters were determined for the bio-inspired structures and compared with the traditional structures. Furthermore, a multi-criteria decision-making method was employed in order to identify the best crashworthiness design. It was found that the multi-layered bio-inspired tube with square cross sections and reinforcement walls outperformed all other designs and exhibited the best energy absorption capability.

Original languageEnglish
Pages (from-to)3683-3700
JournalMechanics Based Design of Structures and Machines
Issue number10
Early online date20 Sept 2020
Publication statusPublished - 2022


  • bio-inspired structures
  • Biomimetic
  • crashworthiness
  • multi-criteria decision-making method
  • thin-walled tubes


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