Contact Dynamics modeling of viscoelastic granular materials using irregular polyhedral particles

Viscoelastic granular materials are present in several disciplines. One example is asphalt mixture employed road construction. In the last three decades, discrete element modeling has been positioned as a valid tool for analysis of this multiphase material at grain-scale. All despite simplification shape particles used these studies. work, it proposed simplified procedure generation viscoelastic samples composed irregular polyhedra. The numerical aggregates were generated by Poisson-Voronoi tessellation based on particle size distribution (PSD) and statistic data aggregates, without using complex imaging technics. This set porosity packing, while controlling PSD. Using implies significant computational-time reduction skipping preparation stages polyhedral samples, such deposition gravity compaction. approach can be study inclusion solid matrix concrete or mixtures, breaking, fatigue damage materials.