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 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.
Chunliang Zhang and Paul P. Lin
X. Y. Liang and F. N. Dang, "Numeric Analysis of Size Effect on Mesol Concrete Random Aggregate Model", Applied Mechanics and Materials, Vols. 226-228, pp. 1780-1784, 2012