Anisotropic material behavior in dense, cohesive-frictional powders

Stefan Luding*, Rostyslav Tykhoniak, Jürgen Tomas

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

26 Citations (Scopus)


The goal of this study is to examine the cohesion and the anisotropy in dense, cohesive powders. This is done by using a discrete element method (DEM) for the simulation of a biaxial box deformation. Our approach includes normal (repulsive/cohesive) as well as tangential forces. Reorganization of the contact network first leads to anisotropy and later to shear band formation and softening behavior from the macroscopic point of view. Both cohesion and friction enhance the material strength. An important result is the fact that the macroscopic cohesion can be related to the maximal microscopic attractive force.

Original languageEnglish
Pages (from-to)1229-1232
Number of pages4
JournalChemical engineering and technology
Issue number12
Early online date17 Nov 2003
Publication statusPublished - 1 Dec 2003
Externally publishedYes


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