On the computational aspects of comminution in discrete element method

authored by

Mohsin Ali Chaudry, Peter Wriggers

Abstract

In this paper, computational aspects of crushing/comminution of granular materials are addressed. For crushing, maximum tensile stress-based criterion is used. Crushing model in discrete element method (DEM) is prone to problems of mass conservation and reduction in critical time step. The first problem is addressed by using an iterative scheme which, depending on geometric voids, recovers mass of a particle. In addition, a global–local framework for DEM problem is proposed which tends to alleviate the local unstable motion of particles and increases the computational efficiency.

Organisation(s)

Institute of Continuum Mechanics

Type

Article

Journal

Computational Particle Mechanics

Volume

5

Pages

175-189

No. of pages

15

ISSN

2196-4378

Publication date

24.05.2017

Publication status

Published

Peer reviewed

Yes

ASJC Scopus subject areas

Computational Mechanics, Civil and Structural Engineering, Numerical Analysis, Modelling and Simulation, Fluid Flow and Transfer Processes, Computational Mathematics

Electronic version(s)

https://doi.org/10.1007/s40571-017-0161-8 (Access: Closed)

 

Details in the research portal "Research@Leibniz University"