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

doi:10.1007/s12541-020-00456-z

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

School of Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

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 language	English
Journal	International Journal of Precision Engineering and Manufacturing
DOIs	https://doi.org/10.1007/s12541-020-00456-z
Publication status	Accepted/In press - 2021

Keywords

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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abstract = "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.",

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AU - Kim, Kwon Hee

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AB - 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.

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