Ries, Alexander; Wolf, Dietrich; Unger, Tamas:
Shear zones in granular media: Three-dimensional contact dynamics simulation
In: Physical Review E : Statistical, nonlinear, and soft matter physics, Jg. 76 (2007), Heft 5, S. 051301 (9 Seiten)
2007Artikel/Aufsatz in Zeitschrift
Physik (inkl. Astronomie)
Damit verbunden: 1 Publikation(en)
Titel:
Shear zones in granular media: Three-dimensional contact dynamics simulation
Autor*in:
Ries, AlexanderUDE
LSF ID
49769
Sonstiges
der Hochschule zugeordnete*r Autor*in
;
Wolf, DietrichUDE
GND
1273280393
LSF ID
1114
Sonstiges
der Hochschule zugeordnete*r Autor*in
;
Unger, Tamas
Erscheinungsjahr:
2007

Abstract:

The properties of shear zones forming in slow three-dimensional granular flow are investigated. We simulate a straight version of the split-bottom shear cell. It is shown that the same type of wide shear zones is obtained in the presence as well as in the absence of gravity. We investigate the relaxation of the material toward stationary flow and analyze the stress and the velocity fields. A functional form of the widening of the shear zone inside the bulk is given. We discuss the growth of the region where the material is in the critical state. The growth of this critical zone turns out to be responsible for the initial transient of the shear zone.