Design of SFRC members aided by a multiscale model: Part I – Predicting the post-cracking parameters

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dc.contributor.authorTrindade, Yasmin T.
dc.contributor.authorBitencourt Jr., Luís A.G.
dc.contributor.authorMonte, Renata
dc.contributor.authorde Figueiredo, Antonio D.
dc.contributor.authorManzoli, Osvaldo L. [UNESP]
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2020-12-12T01:15:57Z
dc.date.available2020-12-12T01:15:57Z
dc.date.issued2020-06-01
dc.description.abstractThe use of steel fiber reinforced concrete (SFRC) is directly related to its post-cracking behavior in tension. The flexural three-point-bending test (3-PBT) according to EN 14651 is among the most recommended tests to evaluate the post-cracking parameters for application of SFRC as structural material. However, due to the intrinsic variability of the mechanical properties of this composite, its characterization using exclusively experimental tests would be very expensive and time-consuming. The present Part I of this two-part study aims to investigate the applicability of a recently proposed numerical model to obtain the post-cracking parameters of SFRC. A series of 3-PBT was experimentally performed for three different fiber contents: 15kg/m3, 30kg/m3 and 45kg/m3. These tests are simulated to study the main factors that may influence the numerical responses such as: mesh refinement; constitutive integration scheme; fiber distributions; fibers/concrete interface parameters and mesoscale vs. multiscale analysis. The results show that this strategy is able to predict the post-cracking parameters and can be applied as an aid tool, extrapolating the experimental results for better understanding the material responses. The influence of experimental and numerical post-cracking parameters on the design of beams according to fib Model Code 2010 is discussed in the accompanying Part II.en
dc.description.affiliationUniversity of São Paulo – USP Department of Structural and Geotechnical Engineering Av. Prof. Luciano Gualberto, Trav. do Biênio n. 380 – CEP - 05508-010
dc.description.affiliationUniversity of São Paulo – USP Department of Civil Construction Engineering Av. Prof. Luciano Gualberto, Trav. do Biênio n. 380 – CEP – 05508-010
dc.description.affiliationSão Paulo State University – UNESP, Av. Eng. Luiz Edmundo C. Coube 14-01 – CEP – 17033-360, Bauru
dc.description.affiliationUnespSão Paulo State University – UNESP, Av. Eng. Luiz Edmundo C. Coube 14-01 – CEP – 17033-360, Bauru
dc.identifierhttp://dx.doi.org/10.1016/j.compstruct.2020.112078
dc.identifier.citationComposite Structures, v. 241.
dc.identifier.doi10.1016/j.compstruct.2020.112078
dc.identifier.issn0263-8223
dc.identifier.scopus2-s2.0-85079843810
dc.identifier.urihttp://hdl.handle.net/11449/198551
dc.language.isoeng
dc.relation.ispartofComposite Structures
dc.sourceScopus
dc.subjectEN 14651
dc.subjectExperimental tests
dc.subjectNumerical modeling
dc.subjectPost-cracking behavior
dc.subjectSFRC
dc.subjectThree-point bending test
dc.titleDesign of SFRC members aided by a multiscale model: Part I – Predicting the post-cracking parametersen
dc.typeArtigo

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