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

• Hamid Nikkhah ^[3] ; Vincenzo Crupi ^[1] ; Ahmad Baroutaji ^[2]
  1. [1] University of Messina

     University of Messina

     Mesina, Italia

     
  2. [2] University of Wolverhampton

     University of Wolverhampton

     GB.ENG.Q3.41UF, Reino Unido

     
  3. [3] University of Mohaghegh Ardabili

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• Localización: Mechanics based design of structures and machines, ISSN 1539-7734, Vol. 50, Nº. 10, 2022, págs. 3683-3700
• Idioma: inglés
• Texto completo no disponible (Saber más ...)
• Resumen

  • 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.