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dc.contributor.authorSimões, T.
dc.contributor.authorOctávio, C.
dc.contributor.authorValença, J.
dc.contributor.authorCosta, H.
dc.contributor.authorDias-da-Costa, D.
dc.contributor.authorJúlio, E.
dc.date.accessioned2019-01-22
dc.date.available2019-01-22
dc.date.issued2017-01-01
dc.identifier.citationSimões, T., Octávio, C., Valença, J., Costa, H., Dias-da-Costa, D., Júlio, E., Influence of concrete strength and steel fibre geometry on the fibre/matrix interface, Composites Part B, Elsevier, 122: 156–164, 2017 (doi: 10.1016/j.compositesb.2017.04.010).en_AU
dc.identifier.urihttps://doi.org/10.1016/j.compositesb.2017.04.010
dc.identifier.urihttp://hdl.handle.net/2123/19833
dc.description.abstractThe main objective of the research described in this paper was to evaluate how the concrete compressive strength and the geometry of the steel fibres influence the behaviour of the fibre/matrix interface. With this aim, three different concrete matrices were designed with 20, 60 and 100 MPa, and two types of steel fibres were adopted (Dramix® 3D and Dramix® 5D). Specific pull-out specimens were produced and three sets of axial tensile tests were defined with different fibres (3D fibres, and 3D and 5D fibres with trimmed ends). A numerical model was calibrated and used to expand the scope of results obtained from the experimental tests. It can be concluded that the concrete compressive strength strongly influences the fibre/matrix strength. In the set with untrimmed 3D fibres, higher strengths are reached due to the hook shaped endings, for all concrete strengths, varying between 64% and 72% of the total load. For fibres with straight endings, increasing both diameter and length increases lead to higher adhesion and friction strengths.en_AU
dc.description.sponsorshipFCT PTDC/ECM/119214/2010, FCT SFRH/BD/84355/2012, FCT SFRH/BD/85922/2012 and FCT SFRH/BPD/102790/2014, ARC DE150101703en_AU
dc.publisherElsevieren_AU
dc.relationFCT PTDC/ECM/119214/2010, FCT SFRH/BD/84355/2012, FCT SFRH/BD/85922/2012 and FCT SFRH/BPD/102790/2014, ARC DE150101703en_AU
dc.rightsCreative Commons Attribution Non-Commercial No Derivatives Licenseen_AU
dc.titleInfluence of concrete strength and steel fibre geometry on the fibre/matrix interfaceen_AU
dc.typeArticleen_AU
dc.subject.asrcFoR::090506 - Structural Engineeringen_AU
dc.subject.asrcFoR::091307 - Numerical Modelling and Mechanical Characterisationen_AU
dc.subject.asrcFoR::091308 - Solid Mechanicsen_AU
dc.identifier.doi10.1016/j.compositesb.2017.04.010
dc.type.pubtypePost-printen_AU


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