Numeric Analysis of Size Effect on Mesol Concrete Random Aggregate Model

In order to research that statics properties of concrete cylinder sample are influenced by micro-concrete material heterogeneity, by random aggregate models generated by different random number were established. By fixed aggregate size and constantly changing of the sample size, the concrete numeric...

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Bibliographic Details
Published inApplied Mechanics and Materials Vol. 226-228; pp. 1780 - 1784
Main Authors Dang, Fa Ning, Liang, Xin Yu
Format Journal Article
LanguageEnglish
Published Zurich Trans Tech Publications Ltd 01.11.2012
Subjects
Compressive Strength
Error Square Sum of Strain
Size Effect
Random Aggregate Model
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Summary:In order to research that statics properties of concrete cylinder sample are influenced by micro-concrete material heterogeneity, by random aggregate models generated by different random number were established. By fixed aggregate size and constantly changing of the sample size, the concrete numerical model was simulated and Strength change of concrete samples was analyzed .So that strength influence of the aggregate location of the concrete random sample was study. Calculation shows that: the strength of concrete has been little effect by the aggregate random location, the size effect on concrete has been changed regularly, with the size effect ratio coefficient of aggregate and sample gradually increasing, the error square sum of strain was reduced and the brittlness of the samples becomes obvious.
Bibliography:Selected, peer reviewed papers from the 2012 International Conference on Vibration, Structural Engineering and Measurement (ICVSEM 2012), October 19-21 2012, Shanghai, China
ISBN:9783037855072
303785507X
ISSN:1660-9336
1662-7482
1662-7482
DOI:10.4028/www.scientific.net/AMM.226-228.1780