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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
2012 Impact Factor: 0.489
2012 SCImago Journal Rankings: 0.508
 
DOIhttp://dx.doi.org/10.1260/1369-4332.15.3.373
 
DC FieldValue
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
2012 Impact Factor: 0.489
2012 SCImago Journal Rankings: 0.508
 
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
 
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<contributor.author>Su, RKL</contributor.author>
<contributor.author>Young, B</contributor.author>
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<description.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.</description.abstract>
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<subject>Bilinear softening law</subject>
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Author Affiliations
  1. The University of Hong Kong
  2. Tianjin University