Counter-intuitive collapse of single-layer reticulated domes subject to interior blast loading

Ma, J; Fan, F; Wu, C; Zhi, X

Counter-intuitive collapse of single-layer reticulated domes subject to interior blast loading

Ma, J Fan, F Wu, C

Zhi, X

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Publication Type:: Journal Article
Citation:: Thin-Walled Structures, 2015, 96 pp. 130 - 138
Issue Date:: 2015-08-01

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Field	Value	Language
dc.contributor.author	Ma, J	en_US
dc.contributor.author	Fan, F	en_US
dc.contributor.author	Wu, C https://orcid.org/0000-0001-6786-7934	en_US
dc.contributor.author	Zhi, X	en_US
dc.date.issued	2015-08-01	en_US
dc.identifier.citation	Thin-Walled Structures, 2015, 96 pp. 130 - 138	en_US
dc.identifier.issn	0263-8231	en_US
dc.identifier.uri	http://hdl.handle.net/10453/119376
dc.description.abstract	© 2015 Elsevier Ltd. A commercial finite element package, LS-DYNA, was employed to simulate the response of a single-layer reticulated dome to an interior blast. The dome, which was initially stressed by static preloading, encountered an interesting phenomenon namely counter-intuitive collapse, which was found during the blast analysis. The Johnson-Cook constitutive model for mild steel was used to identify different failure modes of the dome for more than 2430 samples. A seemingly counter-intuitive collapse was identified due to dynamic instability. This unusual collapse was explained using total potential curves, and the critical blast load was defined. The effect of different static preloads, which is the other determination factor of counter-intuitive collapse, was investigated. A relationship between collapse and static/dynamic loads was also obtained. The results indicate that single-layer reticulated domes, with large initial stresses, may collapse at lower dynamic loads than expected.	en_US
dc.relation.ispartof	Thin-Walled Structures	en_US
dc.relation.isbasedon	10.1016/j.tws.2015.08.001	en_US
dc.subject.classification	Civil Engineering	en_US
dc.title	Counter-intuitive collapse of single-layer reticulated domes subject to interior blast loading	en_US
dc.type	Journal Article
utslib.citation.volume	96	en_US
utslib.for	0905 Civil Engineering	en_US
utslib.for	0901 Aerospace 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
pubs.organisational-group	/University of Technology Sydney/Strength - CBI - Centre for Built Infrastructure
utslib.copyright.status	closed_access
pubs.publication-status	Published	en_US
pubs.volume	96	en_US

Abstract:

© 2015 Elsevier Ltd. A commercial finite element package, LS-DYNA, was employed to simulate the response of a single-layer reticulated dome to an interior blast. The dome, which was initially stressed by static preloading, encountered an interesting phenomenon namely counter-intuitive collapse, which was found during the blast analysis. The Johnson-Cook constitutive model for mild steel was used to identify different failure modes of the dome for more than 2430 samples. A seemingly counter-intuitive collapse was identified due to dynamic instability. This unusual collapse was explained using total potential curves, and the critical blast load was defined. The effect of different static preloads, which is the other determination factor of counter-intuitive collapse, was investigated. A relationship between collapse and static/dynamic loads was also obtained. The results indicate that single-layer reticulated domes, with large initial stresses, may collapse at lower dynamic loads than expected.

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http://hdl.handle.net/10453/119376