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

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TitleNumerical investigation of the bilinear softening law in the cohesive crack model for normal-strength and high-strength concrete
AuthorsGuo, X1 2
Su, RKL1
Young, B1
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
CitationAdvances in Structural Engineering, 2012, v. 15 n. 3, p. 373-387 [How to Cite?]
DOI: http://dx.doi.org/10.1260/1369-4332.15.3.373
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.
ISSN1369-4332
2011 Impact Factor: 0.324
2011 SCImago Journal Rankings: 0.035
DOIhttp://dx.doi.org/10.1260/1369-4332.15.3.373
DC Field
Value
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.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.description.natureLink_to_subscribed_fulltext
dc.identifier.citationAdvances in Structural Engineering, 2012, v. 15 n. 3, p. 373-387 [How to Cite?]
DOI: http://dx.doi.org/10.1260/1369-4332.15.3.373
dc.identifier.doihttp://dx.doi.org/10.1260/1369-4332.15.3.373
dc.identifier.epage387
dc.identifier.hkuros199960
dc.identifier.issn1369-4332
2011 Impact Factor: 0.324
2011 SCImago Journal Rankings: 0.035
dc.identifier.issue3
dc.identifier.scopuseid_2-s2.0-84859471236
dc.identifier.spage373
dc.identifier.urihttp://hdl.handle.net/10722/148836
dc.identifier.volume15
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.publisher.placeUnited Kingdom
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 concrete
dc.typeArticle
Author Affiliations
  1. The University of Hong Kong
  2. Tianjin University