Abstract

The discrete element method (DEM) is an effective approach for the numerical investigation of micromechanical behavior of granules and agglomerates. In this chapter, we apply an extension of the DEM, the so-called bonded particle model (BPM), for modeling the breakage behavior of cylindrical and spherical multicomponent agglomerates during quasi-static compression. The considered agglomerates consist of ideally spherical primary particles connected by cylindrical solid bonds. In several previous case studies, we investigated the behavior of agglomerates consisting of two different types of particles and solid bonds, where the simulations were performed on virtual microstructures generated by a stochastic agglomerate model. For this, we varied the volumetric ratio of both types of particles as well as their material properties. The results obtained show complex non-linear dependencies of the mechanical characteristics of agglomerates on their microstructure and composition.

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