Quasi-static crushing of eggbox, cube, and modified cube foldcore sandwich structures

Fathers, R. K., Gattas, J. M. and You, Z. (2015) Quasi-static crushing of eggbox, cube, and modified cube foldcore sandwich structures. International Journal of Mechanical Sciences, 101-102 421-428. doi:10.1016/j.ijmecsci.2015.08.013

Author Fathers, R. K.
Gattas, J. M.
You, Z.
Title Quasi-static crushing of eggbox, cube, and modified cube foldcore sandwich structures
Journal name International Journal of Mechanical Sciences   Check publisher's open access policy
ISSN 0020-7403
Publication date 2015-10-01
Year available 2015
Sub-type Article (original research)
DOI 10.1016/j.ijmecsci.2015.08.013
Open Access Status Not Open Access
Volume 101-102
Start page 421
End page 428
Total pages 8
Place of publication Doetinchem, The Netherlands
Publisher Elsevier
Collection year 2016
Language eng
Formatted abstract
This paper explores a range of kirigami-inspired folded core structures for use in sandwich panels. Focus has been on assessing the energy-absorption capabilities of the cores, specifically on benchmarking core performance against the widely studied Miura-ori folded core. Four core architectures were investigated. Two cores are based on cube and eggbox known tessellated kirigami patterns. Two cores, the cube-strip and the diamond strip, are developed from geometric modifications of the cube tessellation. The cube strip is generated by removing face portions of the cube pattern that contribute little to energy absorption, effectively making a cellular square tube configuration. The diamond strip introduced a pre-folded origami pattern into the core which has been shown in previous research to substantially increase square tube energy absorption. The performance of each core is assessed under quasi-static loading with experimental and numerical analyses. The non-optimised diamond strip cube strip core offered a 41% increase in average force compared to the best-performing curved-crease Miura-type foldcore previously reported and a 92% improvement over the standard Miura-type foldcore
Keyword Foldcore
Folded sandwich structure
Quasi static impact
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Civil Engineering Publications
Official 2016 Collection
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