Röck, Michael; Morgeneyer, Martin; Schwedes, Jörg; Kadau, Dirk; Brendel, Lothar; Wolf, Dietrich:
Steady state flow of cohesive and non-cohesive powders. Investigations in experiment and simulation
2008
In: Granular matter, Jg. 10 (2008), Heft 4, S. 285 - 293
Artikel/Aufsatz in Zeitschrift / Fach: Physik
Titel:
Steady state flow of cohesive and non-cohesive powders. Investigations in experiment and simulation
Autor(in):
Röck, Michael; Morgeneyer, Martin; Schwedes, Jörg; Kadau, Dirk; Brendel, Lothar im Online-Personal- und -Vorlesungsverzeichnis LSF anzeigen; Wolf, Dietrich im Online-Personal- und -Vorlesungsverzeichnis LSF anzeigen
Erscheinungsjahr:
2008
Erschienen in:
Granular matter, Jg. 10 (2008), Heft 4, S. 285 - 293
ISSN:
ISSN:
DOI:

Abstract:

Steady state flow of powders is a crucial concept to investigate the powders’ strength and flow properties. This state is defined as a continuous deformation of the material without volume change while the stresses at the specimen’s boundaries remain constant. Recent investigations have shown that this state, especially for cohesive powders, is not always as constant as it should be by definition. This paper presents experimental and numerical work, both for cohesive and non-cohesive powders. The experimental part focuses on the use of different control strategies, leading to steady state flow of different quality. Differences between steady state flow for cohesive and non-cohesive powders are shown.