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Article: Stochastic damage model for bond stress-slip relationship of reinforcing bar embedded in concrete

TitleStochastic damage model for bond stress-slip relationship of reinforcing bar embedded in concrete
Authors
KeywordsStochastic damage model
Bond-slip relationship
Path-dependence
Pressure-sensitivity
Issue Date2019
PublisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/engstruct
Citation
Engineering Structures, 2019, v. 194, p. 11-25 How to Cite?
AbstractThe bond behavior of reinforcing bars embedded in concrete has been widely evidenced to exhibit an obvious nonlinearity with a high degree of randomness. To cope with this phenomenon, a stochastic damage model based on an innovative spring system is proposed in this paper. To describe the stochastic feature of bond response, the model introduces a random variable that specifies the failure displacement of micro spring elements, and meanwhile, two evolution laws for the interfacial damage and sliding are also defined respectively. Moreover, the effects of loading history and lateral stress are incorporated into the model, which is capable of reproducing the path-dependence and pressure-sensitivity of bond behavior faithfully. Finally, the model is numerically implemented by exploiting an implicit backward Euler scheme and verified by a number of numerical trial tests and independent experimental results. The satisfactory validations may provide a beneficial reference to bring the stochastic nature of nonlinear interfacial debonding into future theoretical studies on the structural response of reinforced concrete structures.
Persistent Identifierhttp://hdl.handle.net/10722/293548
ISSN
2019 Impact Factor: 3.548
2015 SCImago Journal Rankings: 1.813
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorHuang, L-
dc.contributor.authorYe, H-
dc.contributor.authorChu, S-
dc.contributor.authorXu, L-
dc.contributor.authorChi, Y-
dc.date.accessioned2020-11-23T08:18:23Z-
dc.date.available2020-11-23T08:18:23Z-
dc.date.issued2019-
dc.identifier.citationEngineering Structures, 2019, v. 194, p. 11-25-
dc.identifier.issn0141-0296-
dc.identifier.urihttp://hdl.handle.net/10722/293548-
dc.description.abstractThe bond behavior of reinforcing bars embedded in concrete has been widely evidenced to exhibit an obvious nonlinearity with a high degree of randomness. To cope with this phenomenon, a stochastic damage model based on an innovative spring system is proposed in this paper. To describe the stochastic feature of bond response, the model introduces a random variable that specifies the failure displacement of micro spring elements, and meanwhile, two evolution laws for the interfacial damage and sliding are also defined respectively. Moreover, the effects of loading history and lateral stress are incorporated into the model, which is capable of reproducing the path-dependence and pressure-sensitivity of bond behavior faithfully. Finally, the model is numerically implemented by exploiting an implicit backward Euler scheme and verified by a number of numerical trial tests and independent experimental results. The satisfactory validations may provide a beneficial reference to bring the stochastic nature of nonlinear interfacial debonding into future theoretical studies on the structural response of reinforced concrete structures.-
dc.languageeng-
dc.publisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/engstruct-
dc.relation.ispartofEngineering Structures-
dc.subjectStochastic damage model-
dc.subjectBond-slip relationship-
dc.subjectPath-dependence-
dc.subjectPressure-sensitivity-
dc.titleStochastic damage model for bond stress-slip relationship of reinforcing bar embedded in concrete-
dc.typeArticle-
dc.identifier.emailHuang, L: huangle@hku.hk-
dc.identifier.emailYe, H: hlye@hku.hk-
dc.identifier.authorityYe, H=rp02379-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.engstruct.2019.05.053-
dc.identifier.scopuseid_2-s2.0-85065907625-
dc.identifier.hkuros319193-
dc.identifier.volume194-
dc.identifier.spage11-
dc.identifier.epage25-
dc.identifier.isiWOS:000472991300002-
dc.publisher.placeUnited Kingdom-
dc.identifier.issnl0141-0296-

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