Quasi-static impact of indented foldcores

Gattas, J. M. and You, Z. (2014) Quasi-static impact of indented foldcores. International Journal of Impact Engineering, 73 15-29. doi:10.1016/j.ijimpeng.2014.06.001

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Author Gattas, J. M.
You, Z.
Title Quasi-static impact of indented foldcores
Journal name International Journal of Impact Engineering   Check publisher's open access policy
ISSN 0734-743X
Publication date 2014-11
Year available 2014
Sub-type Article (original research)
DOI 10.1016/j.ijimpeng.2014.06.001
Open Access Status
Volume 73
Start page 15
End page 29
Total pages 15
Place of publication Kidlington, Oxford United Kingdom
Publisher Pergamon Press
Collection year 2015
Language eng
Abstract A modified planar foldcore geometry was developed by introducing sub-folds into a standard foldcore pattern. It was demonstrated using numerical simulation that the new geometry, deemed the indented foldcore, successfully triggered a high-order travelling hinge line failure mode. This was found to have a much higher and more uniform energy absorption than the plate buckling failure mode seen in a standard foldcore structure. A numerical analysis also established optimum standard and indented geometries with maximum energy absorption. Prototypes were constructed to experimentally validate numerical findings. Prototypes with no visible geometric imperfections displayed the travelling hinge line behaviour as predicted. Prototypes with visibly-buckled plates showed no change in failure mode compared to a standard foldcore, confirming numerical findings that the travelling hinge line failure mode is highly sensitive to geometric imperfections.
Keyword Rigid origami
Indented foldcore
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 2015 Collection
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 5 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 6 times in Scopus Article | Citations
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Created: Tue, 22 Jul 2014, 03:29:47 EST by System User on behalf of School of Civil Engineering