Energy Absorption of Square Tubes with Perforations in Dynamic Axial Crush

Jung Hoon Kim, Doo Hyun Cho, Seon Ung Choi, Chang Hee Cho, Kwon Hee Kim

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


This study investigates the energy absorption of thin-walled tubes under dynamic axial crushing. The crush energy is known to be affected by the crush speed and geometry of the perforated tubes. The perforation geometry characterized by the size, shape, and array pattern of the holes was selected with respect to a square reference tube with equal mass. Tests and finite element analyses (FEAs) were performed in conjunction with the design of experiments (DOE). Relative to the reference tube, an average increase of 19.5% in energy absorption was achieved with a set of perforated tubes.

Original languageEnglish
Pages (from-to)567-577
Number of pages11
JournalInternational Journal of Precision Engineering and Manufacturing
Issue number4
Publication statusPublished - 2021 Apr

Bibliographical note

Publisher Copyright:
© 2021, Korean Society for Precision Engineering.


  • Axial crush
  • Design of experiments
  • Energy absorption
  • Finite element analysis
  • Perforation
  • Rectangular tube

ASJC Scopus subject areas

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering


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