Curved crease tube structures and an energy absorbing crash box

Garrett, Daniel, You, Zhong and Gattas, Joseph M. (2016). Curved crease tube structures and an energy absorbing crash box. In: Proceedings of the ASME 2016 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, Charlotte, NC, United States, (). 21-24 August 2016. doi:10.1115/DETC2016-59784

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Author Garrett, Daniel
You, Zhong
Gattas, Joseph M.
Title of paper Curved crease tube structures and an energy absorbing crash box
Conference name International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
Conference location Charlotte, NC, United States
Conference dates 21-24 August 2016
Convener ASME
Proceedings title Proceedings of the ASME 2016 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
Journal name Proceedings of the ASME Design Engineering Technical Conference
Series Proceedings of the ASME Design Engineering Technical Conference
Publisher ASME
Publication Year 2016
Sub-type Fully published paper
DOI 10.1115/DETC2016-59784
Open Access Status Not yet assessed
ISBN 9780791850169
Volume 5B-2016
Total pages 9
Language eng
Abstract/Summary Straight-crease origami crash boxes have previously been designed to possess a near optimum failure mode for a tubular energy-absorbing device. This failure mode, termed a 'complete diamond mode' (CDM), possesses a low peak force Pmax and high average force P caused by generation of travelling hinge lines that propagate laterally during crushing. The present study investigates the hypothesis that a curved crease structure could further improve failure characteristics by having a lower P due to the initially curved corner lobes. An experimental and numerical investigation was conducted using aluminium curved crease origami tubes, with certain curved crease tubes exhibiting the desired CDM and good correspondence seen between experimental and numerical behaviours. A parametric numerical analysis on 45 steel curved crease origami tubes showed a maximum reduction in P of 67% was observed, which is better than the straight-crease origami crash boxes in this respect. A maximum increase in P of 65% was observed, which is worse than straight-crease origami crash boxes. A lower Pmax was thus achieved as hypothesised, however this improvement came at the expense of a reduction in average force. Curved crease crash boxes are therefore concluded to have minimal benefit over existing straight crease crash box designs.
Subjects 2210 Mechanical Engineering
1704 Computer Graphics and Computer-Aided Design
1706 Computer Science Applications
2611 Modelling and Simulation
Keyword Crash box
Curved crease origami
Energy absorption
Q-Index Code E1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Conference Paper
Sub-type: Fully published paper
Collections: School of Mechanical & Mining Engineering Publications
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Created: Tue, 07 Mar 2017, 09:44:38 EST by Clare Nelson on behalf of School of Mechanical and Mining Engineering