An application of the finite-discrete element method in the simulation of ceramic breakage: methodology for a validation study for alumina specimens

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Title: An application of the finite-discrete element method in the simulation of ceramic breakage: methodology for a validation study for alumina specimens
Author(s): Farsi, A
Xiang, J
Latham, J
Pullen, A
Carlsson, M
Stitt, EH
Marigo, M
Item Type: Conference Paper
Abstract: Alumina (aluminum oxide, Al2O3) particles are pelletised and fired to produce high porosity catalyst pellets of complex shapes. These pellets fill cylindrical reactor columns with particulate packing structures that are key to the in-service performance, but will suffer breakages which impact on catalyst performance. The combined Finite- Discrete Element Method (FEMDEM) is ideally suited to the simulation of both the multi-body pellet dynamic packing and quasi-static interactions as well as the stress field of each individual pellet, its deformations and fragmentation. The application of FEMDEM fracture modelling to a fine-grained brittle and porous material is novel. This paper presents a methodology for a validation study through comparison with three point- bending and Brazilian tests and discusses FEMDEMs potential in modelling multi-body fragile systems.
Publication Date: 28-Sep-2015
Date of Acceptance: 24-Jul-2015
URI: http://hdl.handle.net/10044/1/28974
ISBN: 978-84-944244-7-2
Publisher: International Center for Numerical Methods in Engineering (CIMNE)
Start Page: 921
End Page: 932
Copyright Statement: © 2015 The authors
Sponsor/Funder: Johnson Matthey plc
Funder's Grant Number: 12220379
Conference Name: IV International Conference on Particle-based Methods – Fundamentals and Applications
Publication Status: Published
Start Date: 2015-09-28
Finish Date: 2015-09-30
Conference Place: Barcelona
Appears in Collections:Faculty of Engineering
Civil and Environmental Engineering
Earth Science and Engineering



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