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Numerical modeling of concrete beams under serviceability conditions with a discrete crack approach and noniterative solution-finding algorithms

2017-02Journal article Restricted access
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dc.contributor.authorDias-da-Costa, Daniel
dc.contributor.authordo Carmo, Ricardo N. F.
dc.contributor.authorGraça-e-Costa, R.
dc.date.accessioned2019-11-20T15:07:49Z
dc.date.available2019-11-20T15:07:49Z
dc.date.issued2017-02
dc.description.abstractThis paper describes the development and validation of a comprehensive numerical model enabling the simulation of reinforced concrete beams under serviceability conditions using a discrete crack approach. The highly nonlinear behavior introduced by the different material models and the many localized cracks propagating within the member pose a challenge to classic iterative solvers, which often fail to converge. This limitation is solved using a noniterative solution-finding algorithm to overcome critical bifurcation points. The finite element model was validated using experimental data on lightweight aggregate concrete beams under flexural loading. It was shown that the model properly simulates both the overall and localized features of the structural response, including curvature, crack openings, and crack patterns. The model was used to carry out a numerical study of the role of longitudinal reinforcement ratios and crack widths in reinforced concrete beams. It was observed that the total crack openings along a member seem to remain nearly independent of the tensile reinforcement for ratios >2.5% and the same level of strength.
dc.description.sponsorshipAustralian Research Council [DE150101703]
dc.description.sponsorshipFaculty of Engineering & Information Technologies, The University of Sydney (Faculty Research Cluster Program)
dc.description.sponsorshipFCT (Portuguese Foundation for Science & Technology) through ISISE [UID/ECI/04029/2013]
dc.description.versioninfo:eu-repo/semantics/publishedVersion
dc.identifier.doi10.1002/suco.201600130
dc.identifier.issn1464-4177
dc.identifier.issn1751-7648
dc.identifier.urihttp://hdl.handle.net/10400.1/13230
dc.language.isoeng
dc.peerreviewedyes
dc.publisherErnst und Sohn
dc.subjectFinite-element-method
dc.subjectStrong discontinuities
dc.subjectReinforced-concrete
dc.subjectFracture
dc.subjectFailure
dc.subjectBrittle
dc.subjectFormulation
dc.subjectSimulation
dc.subjectMechanics
dc.subjectGrowth
dc.titleNumerical modeling of concrete beams under serviceability conditions with a discrete crack approach and noniterative solution-finding algorithms
dc.typejournal article
dspace.entity.typePublication
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FECI%2F04029%2F2013/PT
oaire.citation.endPage236
oaire.citation.issue1
oaire.citation.startPage225
oaire.citation.titleStructural Concrete
oaire.citation.volume18
oaire.fundingStream5876
person.familyNameGraça-e-Costa
person.givenNameRui
person.identifier.ciencia-id341C-F910-81BF
person.identifier.orcid0000-0001-7704-2506
person.identifier.scopus-author-id55514058200
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsrestrictedAccess
rcaap.typearticle
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