Abstract
In case of analyzing mechanical behavior of asphalt mixture by means of distinct element method (DEM), element assembly should be regarded as an equivalent mixture model. It means that individual element does not express each aggregate particle. At the point of view, element packing, which decides initial location and radius of each particle element, is puzzling procedure as an necessary preparation for calculation. In this paper, numerical simulations of triaxial compression test were carried out using various typical packing ways, and characteristics of element packing were proved. Applicability of these packing ways was discussed by comparing with results of asphalt mixture testing. From the comparison, it was shown that appropriate packing way should be selected according to the analyzed problem, since calculation result is deeply depend on initial packing model.
