Crashworthiness of hierarchical circular-joint quadrangular honeycombs

Wu, Y; Fang, J; He, Y; Li, W

Crashworthiness of hierarchical circular-joint quadrangular honeycombs

Wu, Y Fang, J

He, Y Li, W

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Publication Type:: Journal Article
Citation:: Thin-Walled Structures, 2018, 133 pp. 180 - 191
Issue Date:: 2018-12-01

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Field	Value	Language
dc.contributor.author	Wu, Y	en_US
dc.contributor.author	Fang, J https://orcid.org/0000-0003-0119-6108	en_US
dc.contributor.author	He, Y	en_US
dc.contributor.author	Li, W	en_US
dc.date.issued	2018-12-01	en_US
dc.identifier.citation	Thin-Walled Structures, 2018, 133 pp. 180 - 191	en_US
dc.identifier.issn	0263-8231	en_US
dc.identifier.uri	http://hdl.handle.net/10453/131351
dc.description.abstract	© 2018 Elsevier Ltd The new hierarchical circular-joint quadrangular honeycomb is proposed by iteratively replacing the edge-junctions of regular honeycomb with a circular joint. Firstly, the nonlinear finite element analysis is performed through LS-DYNA and the results are validated by experimental data. Then, analytical solutions to crushing resistance of the hierarchical honeycomb are obtained based on the Simplified Super Folding Element (SSFE) theory. The results between the numerical and analytical method are in good agreement, which indicates that the analytical solutions are reliable. Furthermore, parametric studies of the first and second hierarchical order structures are conducted numerically. The results show that the specific energy absorption of the first and second-order hierarchical honeycomb is improved by up to 81.8%, 115.3% respectively compared with the regular honeycomb. It is also found that the out-of-plane crashworthiness performance of the second-order hierarchical honeycomb can be enhanced by increasing relative density. However, the peak crushing force would also increase with the increase in relative density. The findings of this study show that the proposed hierarchical honeycomb is a structural configuration with high energy absorption capacity.	en_US
dc.relation.ispartof	Thin-Walled Structures	en_US
dc.relation.isbasedon	10.1016/j.tws.2018.09.044	en_US
dc.subject.classification	Civil Engineering	en_US
dc.title	Crashworthiness of hierarchical circular-joint quadrangular honeycombs	en_US
dc.type	Journal Article
utslib.citation.volume	133	en_US
utslib.for	090506 Structural Engineering	en_US
utslib.for	0901 Aerospace Engineering	en_US
utslib.for	0905 Civil Engineering	en_US
utslib.for	0913 Mechanical Engineering	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
utslib.copyright.status	closed_access
pubs.publication-status	Published	en_US
pubs.volume	133	en_US

Abstract:

© 2018 Elsevier Ltd The new hierarchical circular-joint quadrangular honeycomb is proposed by iteratively replacing the edge-junctions of regular honeycomb with a circular joint. Firstly, the nonlinear finite element analysis is performed through LS-DYNA and the results are validated by experimental data. Then, analytical solutions to crushing resistance of the hierarchical honeycomb are obtained based on the Simplified Super Folding Element (SSFE) theory. The results between the numerical and analytical method are in good agreement, which indicates that the analytical solutions are reliable. Furthermore, parametric studies of the first and second hierarchical order structures are conducted numerically. The results show that the specific energy absorption of the first and second-order hierarchical honeycomb is improved by up to 81.8%, 115.3% respectively compared with the regular honeycomb. It is also found that the out-of-plane crashworthiness performance of the second-order hierarchical honeycomb can be enhanced by increasing relative density. However, the peak crushing force would also increase with the increase in relative density. The findings of this study show that the proposed hierarchical honeycomb is a structural configuration with high energy absorption capacity.

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http://hdl.handle.net/10453/131351