894 citations · 3.8k across the 59 of their papers we have counts for
10 papers · 1 filter
Structural fluctuations in thin cohesive particle layers in powder-based additive manufacturing
Sudeshna Roy, Hongyi Xiao, Vasileios Angelidakis +1
Producing dense and homogeneous powder layers with smooth free surface is challenging in additive manufacturing, as interparticle cohesion can strongly affect the powder packing st…
Collision of Viscoelastic Spheres: Compact Expressions for the Coefficient of Normal Restitution
Patric Mueller, Thorsten Poeschel
The coefficient of restitution of colliding viscoelastic spheres is analytically known as a complete series expansion in terms of the impact velocity where all (infinitely many) co…
A model for collisions in granular gases
Nikolai V. Brilliantov, Frank Spahn, Jan-Martin Hertzsch +1
We propose a model for collisions between particles of a granular material and calculate the restitution coefficients for the normal and tangential motion as functions of the impac…
Simulation of rotating drum experiments using non-circular particles
Volkhard Buchholtz, Thorsten Poeschel, Hans-Juergen Tillemans
We investigate the flow of granular material in a rotating cylinder numerically using molecular dynamics in two dimensions. The particles are described by a new model which allows…
Scaling properties of granular materials
Thorsten Poeschel, Clara Saluena, Thomas Schwager
Given an assembly of viscoelastic spheres with certain material properties, we raise the question how the macroscopic properties of the assembly will change if all lengths of the s…
Molecular Dynamics of Comminution in Ball Mills
Volkhard Buchholtz, Jan A. Freund, Thorsten Poeschel
We investigate autogenous fragmentation of dry granular material in rotating cylinders using two-dimensional molecular dynamics. By evaluation of spatial force distributions achiev…
Rolling as a continuing collision
Nikolai V. Brilliantov, Thorsten Poeschel
We show that two basic mechanical processes, the collision of particles and rolling motion of a sphere on a plane, are intimately related. According to our recent findings, the res…
Extremal collision sequences of particles on a line: optimal transmission of kinetic energy
Thorsten Poeschel, Nikolai V. Brilliantov
The transmission of kinetic energy through chains of inelastically colliding spheres is investigated for the case of constant coefficient of restitution ε=const and impact-velocity…
Dissipative properties of vibrated granular materials
Clara Saluena, Thorsten Poeschel, Sergei E. Esipov
We investigate collective dissipative properties of vibrated granular materials by means of molecular dynamics simulations. Rates of energy losses indicate three different regimes…
Rolling friction of a hard cylinder on a viscous plane
Thorsten Poeschel, Thomas Schwager, Nikolai V. Brilliantov
The resistance against rolling of a rigid cylinder on a flat viscous surface is investigated. We found that the rolling-friction coefficient reveals strongly non-linear dependence…