79 citations · 742 across the 27 of their papers we have counts for
13 papers · 1 filter
Nucleation in sheared granular matter
Frank Rietz, Charles Radin, Harry L. Swinney +1
We present an experiment on crystallization of packings of macroscopic granular spheres. This system is often considered to be a model for thermally driven atomic or colloidal syst…
A local view on the role of friction and shape
Matthias Schröter
Leibniz said "Naturam cognosci per analogiam": nature is understood by making analogies. This statement describes a seminal epistemological principle. But one has to be aware of it…
Influence of humidity on the tribo-electric charging and segregation in shaken granular media
André Schella, Stephan Herminghaus, Matthias Schröter
We study the effect of humidity on the charge accumulation of polymer granulates shaken vertically in a stainless steel container. The setup allows to control the humidity level fr…
A cohesive granular material with tunable elasticity
Arnaud Hemmerle, Matthias Schröter, Lucas Goehring
By mixing glass beads with a curable polymer we create a well-defined cohesive granular medium, held together by solidified, and hence elastic, capillary bridges. This material has…
Non-universal Voronoi cell shapes in amorphous ellipsoid packings
Fabian M. Schaller, Sebastian C. Kapfer, James E. Hilton +8
In particulate systems with short-range interactions, such as granular matter or simple fluids, local structure plays a pivotal role in determining the macroscopic physical propert…
Local analysis of the history dependence in tetrahedra packings
N. Nirmal Thyagu, Max Neudecker, Simon Weis +2
The mechanical properties of a granular sample depend frequently on the way the packing was prepared. However, is not well understood which properties of the packing store this inf…
The mechanism of long-term coarsening of granular mixtures in rotating drums
Tilo Finger, Matthias Schröter, Ralf Stannarius
Three fundamental segregation and pattern formation processes are known in granular mixtures in a rotating cylindrical drum: radial segregation, axial banding, and coarsening of th…
Local origin of global contact numbers in frictional ellipsoid packings
Fabian M. Schaller, Max Neudecker, Mohammad Saadatfar +3
In particulate soft matter systems the average number of contacts of a particle is an important predictor of the mechanical properties of the system. Using X-ray tomography, we…
Measuring the configurational temperature of a binary disc packing
Song-Chuan Zhao, Matthias Schröter
Jammed packings of granular materials differ from systems normally described by statistical mechanics in that they are athermal. In recent years a statistical mechanics of static g…
Jammed frictional tetrahedra are hyperstatic
Max Neudecker, Stephan Ulrich, Stephan Herminghaus +1
We prepare packings of frictional tetrahedra with volume fractions ϕ ranging from 0.469 to 0.622 using three different experimental protocols under isobaric conditions. Analysis vi…
Shearing of frictional sphere packings
Jean-François Métayer, Donald J. Suntrup, Charles Radin +2
We measure shear response in packings of glass beads by pulling a thin, rough, metal plate vertically through a bed of volume fraction phi, which is set, before the plate is pulled…
Sound speed in water-saturated glass beads as a function of frequency and porosity
Theodore F. Argo, Matthew D. Guild, Preston S. Wilson +3
Sound propagation in water-saturated granular sediments is known to depend on the sediment porosity, but few data in the literature address both the frequency and porosity dependen…
Fluidization of granular media wetted by liquid He
K. Huang, M. Sohaili, M. Schröter +1
We explore experimentally the fluidization of vertically agitated PMMA spheres wetted by liquid He. By controlling the temperature around the point we change the properties…