DEM Three-dimensional modeling of triaxial testing on railway ballast

Vizcarra, G; Casagrande, M; Nimbalkar, S

DEM Three-dimensional modeling of triaxial testing on railway ballast

Vizcarra, G Casagrande, M Nimbalkar, S

Permalink

Publication Type:: Conference Proceeding
Citation:: ICSMGE 2017 - 19th International Conference on Soil Mechanics and Geotechnical Engineering, 2017, 2017-September pp. 1443 - 1446
Issue Date:: 2017-01-01

Closed Access

	Filename	Description	Size
	06-technical-committee-08-tc202-29.pdf	Published version	508.18 kB	Adobe PDF	View/Open

Copyright Clearance Process

Recently Added
In Progress
Closed Access

This item is closed access and not available.

Full metadata record

Field	Value	Language
dc.contributor.author	Vizcarra, G	en_US
dc.contributor.author	Casagrande, M	en_US
dc.contributor.author	Nimbalkar, S https://orcid.org/0000-0002-1538-3396	en_US
dc.date.issued	2017-01-01	en_US
dc.identifier.citation	ICSMGE 2017 - 19th International Conference on Soil Mechanics and Geotechnical Engineering, 2017, 2017-September pp. 1443 - 1446	en_US
dc.identifier.uri	http://hdl.handle.net/10453/126535
dc.description.abstract	© 2018 19th ICSMGE Secretariat. All rights reserved. This article presents the results of numerical simulations of cyclic loading tests conducted on particles that simulate railroad ballast. The objective of this study was to evaluate the deformation of ballast under a large number of loading cycles and to study the influence of the two different particle size distributions. One of them was according to particle size distribution recommended by Indraratna and co-workers in the past as an improvement to Australian Standard and the other was prepared in accordance with Brazilian standard. The discrete element method offers a new means of studying the response characteristics of railway ballast. The basic idea of discrete element method (DEM) is that arbitrary discontinuities are divided into a set of rigid elements, making each rigid element satisfy the equations of motion, use time step iteration method for solving the equations of motion of rigid elements, and then obtain the overall movement patterns of arbitrary discontinuities. In this study, the discrete element method of analysis has been used to simulate the geotechnical behaviour of railway ballast observed during the testing.	en_US
dc.relation.ispartof	ICSMGE 2017 - 19th International Conference on Soil Mechanics and Geotechnical Engineering	en_US
dc.title	DEM Three-dimensional modeling of triaxial testing on railway ballast	en_US
dc.type	Conference Proceeding
utslib.citation.volume	2017-September	en_US
utslib.for	0905 Civil Engineering	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - CBI - Centre for Built Infrastructure
utslib.copyright.status	closed_access
pubs.publication-status	Published	en_US
pubs.volume	2017-September	en_US

Abstract:

© 2018 19th ICSMGE Secretariat. All rights reserved. This article presents the results of numerical simulations of cyclic loading tests conducted on particles that simulate railroad ballast. The objective of this study was to evaluate the deformation of ballast under a large number of loading cycles and to study the influence of the two different particle size distributions. One of them was according to particle size distribution recommended by Indraratna and co-workers in the past as an improvement to Australian Standard and the other was prepared in accordance with Brazilian standard. The discrete element method offers a new means of studying the response characteristics of railway ballast. The basic idea of discrete element method (DEM) is that arbitrary discontinuities are divided into a set of rigid elements, making each rigid element satisfy the equations of motion, use time step iteration method for solving the equations of motion of rigid elements, and then obtain the overall movement patterns of arbitrary discontinuities. In this study, the discrete element method of analysis has been used to simulate the geotechnical behaviour of railway ballast observed during the testing.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/126535