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Article: Numerical investigation of the bilinear softening law in the cohesive crack model for normal-strength and high-strength concrete

TitleNumerical investigation of the bilinear softening law in the cohesive crack model for normal-strength and high-strength concrete
Authors
KeywordsBilinear softening law
Cohesive crack models
Concrete fracture
Energy ratio
Stress ratio
Issue Date2012
PublisherMulti-Science Publishing Co Ltd. The Journal's web site is located at http://www.multi-science.co.uk/advstruc.htm
Citation
Advances in Structural Engineering, 2012, v. 15 n. 3, p. 373-387 How to Cite?
Abstract
A powerful methodology in concrete fracture research is the cohesive crack model with a bilinear softening law, where both the energy and the stress ratios play important roles. Here a direct numerical approach based on the intrinsic cohesive crack model was employed in fracture analysis of normal-strength and high-strength concrete specimens. The best-fit energy ratio is found to be consistent with that reported by Bazant and Becq-Giraudon while varying over a narrower range. The best-fit stress ratio is found to be larger than all of the results from the inverse analysis. It is recommended that the softening law for high-strength concrete had a larger stress ratio.
Persistent Identifierhttp://hdl.handle.net/10722/148836
ISSN
2013 Impact Factor: 0.603
2013 SCImago Journal Rankings: 0.746

 

Author Affiliations
  1. The University of Hong Kong
  2. Tianjin University
DC FieldValueLanguage
dc.contributor.authorGuo, X-
dc.contributor.authorSu, RKL-
dc.contributor.authorYoung, B-
dc.date.accessioned2012-06-11T02:13:56Z-
dc.date.available2012-06-11T02:13:56Z-
dc.date.issued2012-
dc.identifier.citationAdvances in Structural Engineering, 2012, v. 15 n. 3, p. 373-387-
dc.identifier.issn1369-4332-
dc.identifier.urihttp://hdl.handle.net/10722/148836-
dc.description.abstractA powerful methodology in concrete fracture research is the cohesive crack model with a bilinear softening law, where both the energy and the stress ratios play important roles. Here a direct numerical approach based on the intrinsic cohesive crack model was employed in fracture analysis of normal-strength and high-strength concrete specimens. The best-fit energy ratio is found to be consistent with that reported by Bazant and Becq-Giraudon while varying over a narrower range. The best-fit stress ratio is found to be larger than all of the results from the inverse analysis. It is recommended that the softening law for high-strength concrete had a larger stress ratio.-
dc.languageeng-
dc.publisherMulti-Science Publishing Co Ltd. The Journal's web site is located at http://www.multi-science.co.uk/advstruc.htm-
dc.relation.ispartofAdvances in Structural Engineering-
dc.subjectBilinear softening law-
dc.subjectCohesive crack models-
dc.subjectConcrete fracture-
dc.subjectEnergy ratio-
dc.subjectStress ratio-
dc.titleNumerical investigation of the bilinear softening law in the cohesive crack model for normal-strength and high-strength concreteen_US
dc.typeArticleen_US
dc.identifier.emailGuo, X: xiangguo@hku.hk-
dc.identifier.emailSu, RKL: klsu@hkucc.hku.hk-
dc.identifier.emailYoung, B: young@hku.hk-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1260/1369-4332.15.3.373-
dc.identifier.scopuseid_2-s2.0-84859471236-
dc.identifier.hkuros199960-
dc.identifier.volume15-
dc.identifier.issue3-
dc.identifier.spage373-
dc.identifier.epage387-
dc.publisher.placeUnited Kingdom-

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