Additive manufacturing (AM) or 3D printing is beginning to mature from a rapid prototyping to
an industrial production technology. However, there are still a lot of fundamental questions …

Discrete particle simulations provide a powerful tool for the advancement of our
understanding of granular media, and the development and refinement of the multitudinous …

Dry, frictional, steady-state granular flows down an inclined, rough surface are studied with
discrete particle simulations. From this exemplary flow situation, macroscopic fields …

The discrete element method (DEM) is used extensively for the simulation of granular
materials and in powder technology. Averaging or coarse graining (CG) techniques, also …

Flows of granular media down a rough inclined plane demonstrate a number of nonlocal
phenomena. We apply the recently proposed nonlocal granular fluidity model to this …

Several theoretical predictions of the mass flow rate of granular media discharged from a
silo are based on the spontaneous development of a free-fall arch region, the existence of …

An expression for the stress tensor near an external boundary of a discrete mechanical
system is derived explicitly in terms of the constituents' degrees of freedom and interaction …

Over the last 25 years a lot of work has been undertaken on constructing continuum models
for segregation of particles of different sizes. We focus on one model that is designed to …

The finite element method (FEM) is commonly used for modeling continuum media, while
particle simulation methods like the so-called discrete element method (DEM) are used for …

Recent progresses in understanding the behavior of dense granular flows are presented.
After presenting a bulk rheology of granular materials, I focus on the new developments to …