Novel ductile FRP system for concrete reinforcement: concept and experimental characterization
Novel ductile FRP system for concrete reinforcement: concept and experimental characterization
This paper presents a novel design concept for fiber reinforced polymer (FRP) composites consisting of three-dimensional (3D) printed cores and FRP helical skins as a means of ensuring adequate ductility, compared to the brittle FRP systems conventionally used for internal reinforcement. The experiment demonstrated that when the FRP skins were loaded in tension, the core—which was 3D printed using acrylonitrile butadiene styrene or polylactic acid—was gradually compressed, thereby leading to plastic deformation. This behavior ensured a nonlinear load response while eliminating the unfavorable brittle failure of the FRPs. The results also indicated that the proposed FRP composite system ensured that no premature debonding/delamination occurred between the skin–skin and skin–core. The results of the parametric experimental study indicated that design parameters such as the FRP amount, core height, core span, core shell thickness, core material, core brace, and core number (i.e., the number of inner cores used for the composite) may be optimized to realize the expected design load capacity and ductility.
1-13
Sun, Wei
ab8e8179-f25d-4f51-95c3-8c009acf0c27
Liu, Haifeng
c66e8a63-59d7-4bec-bfeb-279cd3caba17
Achintha, Mithila
8163c322-de6d-4791-bc31-ba054cc0e07d
Pan, Chunlin
10f0c402-958f-4bdc-b3b6-05a53ecca941
He, Tao
5a7e98e6-6045-49b6-bbad-551733952b50
August 2019
Sun, Wei
ab8e8179-f25d-4f51-95c3-8c009acf0c27
Liu, Haifeng
c66e8a63-59d7-4bec-bfeb-279cd3caba17
Achintha, Mithila
8163c322-de6d-4791-bc31-ba054cc0e07d
Pan, Chunlin
10f0c402-958f-4bdc-b3b6-05a53ecca941
He, Tao
5a7e98e6-6045-49b6-bbad-551733952b50
Sun, Wei, Liu, Haifeng, Achintha, Mithila, Pan, Chunlin and He, Tao
(2019)
Novel ductile FRP system for concrete reinforcement: concept and experimental characterization.
Journal of Composites for Construction, 23 (4), .
(doi:10.1061/(ASCE)CC.1943-5614.0000957).
Abstract
This paper presents a novel design concept for fiber reinforced polymer (FRP) composites consisting of three-dimensional (3D) printed cores and FRP helical skins as a means of ensuring adequate ductility, compared to the brittle FRP systems conventionally used for internal reinforcement. The experiment demonstrated that when the FRP skins were loaded in tension, the core—which was 3D printed using acrylonitrile butadiene styrene or polylactic acid—was gradually compressed, thereby leading to plastic deformation. This behavior ensured a nonlinear load response while eliminating the unfavorable brittle failure of the FRPs. The results also indicated that the proposed FRP composite system ensured that no premature debonding/delamination occurred between the skin–skin and skin–core. The results of the parametric experimental study indicated that design parameters such as the FRP amount, core height, core span, core shell thickness, core material, core brace, and core number (i.e., the number of inner cores used for the composite) may be optimized to realize the expected design load capacity and ductility.
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Accepted manuscript 25 Jan 2019
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Accepted manuscript 25Jan2019
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Accepted/In Press date: 25 January 2019
e-pub ahead of print date: 13 June 2019
Published date: August 2019
Identifiers
Local EPrints ID: 429838
URI: http://eprints.soton.ac.uk/id/eprint/429838
ISSN: 1090-0268
PURE UUID: 92d3ec84-118d-47ae-a3e1-bbb8ee73a1ae
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Date deposited: 08 Apr 2019 16:30
Last modified: 16 Mar 2024 01:15
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Contributors
Author:
Wei Sun
Author:
Haifeng Liu
Author:
Mithila Achintha
Author:
Chunlin Pan
Author:
Tao He
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