Investigation of ultra-high performance concrete slab and normal strength concrete slab under contact explosion

Li, J; Wu, C; Hao, H

Investigation of ultra-high performance concrete slab and normal strength concrete slab under contact explosion

Li, J

Wu, C

Hao, H

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Publication Type:: Journal Article
Citation:: Engineering Structures, 2015, 102 pp. 395 - 408
Issue Date:: 2015-11-01

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Field	Value	Language
dc.contributor.author	Li, J https://orcid.org/0000-0003-2457-1994	en_US
dc.contributor.author	Wu, C https://orcid.org/0000-0001-6786-7934	en_US
dc.contributor.author	Hao, H	en_US
dc.date.issued	2015-11-01	en_US
dc.identifier.citation	Engineering Structures, 2015, 102 pp. 395 - 408	en_US
dc.identifier.issn	0141-0296	en_US
dc.identifier.uri	http://hdl.handle.net/10453/119239
dc.description.abstract	© 2015 Elsevier Ltd. Dynamic performance of concrete structures under blast loading conditions is a topic of importance as such load generates severe structural damage including flexural damage, shear damage and concrete spall damage which may impose threats to the personnel and instruments shielded by the reinforced concrete structure. To mitigate blast effects on civil structures, a new kind of concrete material named Ultra-High-Performance-Concrete (UHPC) is now widely studied and applied. UHPC material is known for its high compressive and tensile strength, large energy absorption capacity as well as good workability and anti-abrasion ability. In a previous study, the performance of UHPC slab under blast loads had been investigated through free air explosion tests. The blast resistance capacity of UHPC had been demonstrated through comparison with normal strength concrete. In the present study, the dynamic performance of UHPC slab under contact charge explosion is experimentally studied and compared with normal strength concrete slab under the same loading scenario. Numerical models are established to reproduce both the previous free air explosion tests and the current contact explosion tests. In particular, finite element model is established to simulate the free air explosion test, and coupled smoothed particle hydrodynamics (SPH) method and finite element method is utilized to simulate the contact blast tests. Numerical results are compared with the experimental observations, and the feasibility and accuracy of the numerical model are validated.	en_US
dc.relation	http://purl.org/au-research/grants/arc/DP140103525
dc.relation.ispartof	Engineering Structures	en_US
dc.relation.isbasedon	10.1016/j.engstruct.2015.08.032	en_US
dc.subject.classification	Civil Engineering	en_US
dc.title	Investigation of ultra-high performance concrete slab and normal strength concrete slab under contact explosion	en_US
dc.type	Journal Article
utslib.citation.volume	102	en_US
utslib.for	0905 Civil Engineering	en_US
utslib.for	0912 Materials Engineering	en_US
utslib.for	0915 Interdisciplinary 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	102	en_US

Abstract:

© 2015 Elsevier Ltd. Dynamic performance of concrete structures under blast loading conditions is a topic of importance as such load generates severe structural damage including flexural damage, shear damage and concrete spall damage which may impose threats to the personnel and instruments shielded by the reinforced concrete structure. To mitigate blast effects on civil structures, a new kind of concrete material named Ultra-High-Performance-Concrete (UHPC) is now widely studied and applied. UHPC material is known for its high compressive and tensile strength, large energy absorption capacity as well as good workability and anti-abrasion ability. In a previous study, the performance of UHPC slab under blast loads had been investigated through free air explosion tests. The blast resistance capacity of UHPC had been demonstrated through comparison with normal strength concrete. In the present study, the dynamic performance of UHPC slab under contact charge explosion is experimentally studied and compared with normal strength concrete slab under the same loading scenario. Numerical models are established to reproduce both the previous free air explosion tests and the current contact explosion tests. In particular, finite element model is established to simulate the free air explosion test, and coupled smoothed particle hydrodynamics (SPH) method and finite element method is utilized to simulate the contact blast tests. Numerical results are compared with the experimental observations, and the feasibility and accuracy of the numerical model are validated.

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http://hdl.handle.net/10453/119239