Application of fractional calculus in modelling ballast deformation under cyclic loading

Sun, Y; Indraratna, B; Carter, JP; Marchant, T; Nimbalkar, S

Application of fractional calculus in modelling ballast deformation under cyclic loading

Sun, Y Indraratna, B Carter, JP Marchant, T Nimbalkar, S

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Publication Type:: Journal Article
Citation:: Computers and Geotechnics, 2017, 82 pp. 16 - 30
Issue Date:: 2017-02-01

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Field	Value	Language
dc.contributor.author	Sun, Y	en_US
dc.contributor.author	Indraratna, B	en_US
dc.contributor.author	Carter, JP	en_US
dc.contributor.author	Marchant, T	en_US
dc.contributor.author	Nimbalkar, S https://orcid.org/0000-0002-1538-3396	en_US
dc.date.issued	2017-02-01	en_US
dc.identifier.citation	Computers and Geotechnics, 2017, 82 pp. 16 - 30	en_US
dc.identifier.issn	0266-352X	en_US
dc.identifier.uri	http://hdl.handle.net/10453/65875
dc.description.abstract	© 2016 Elsevier Ltd Most constitutive models can only simulate cumulative deformation after a limited number of cycles. However, railroad ballast usually experiences a large number of train passages that cause history-dependent long-term deformation. Fractional calculus is an efficient tool for modelling this phenomenon and therefore is incorporated into a constitutive model for predicting the cumulative deformation. The proposed model is further validated by comparing the model predictions with a series of corresponding experimental results. It is observed that the proposed model can realistically simulate the cumulative deformation of ballast from the onset of loading up to a large number of load cycles.	en_US
dc.relation.ispartof	Computers and Geotechnics	en_US
dc.relation.isbasedon	10.1016/j.compgeo.2016.09.010	en_US
dc.subject.classification	Geological & Geomatics Engineering	en_US
dc.title	Application of fractional calculus in modelling ballast deformation under cyclic loading	en_US
dc.type	Journal Article
utslib.citation.volume	82	en_US
utslib.for	0905 Civil Engineering	en_US
utslib.for	0914 Resources Engineering and Extractive Metallurgy	en_US
utslib.for	0915 Interdisciplinary 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	82	en_US

Abstract:

© 2016 Elsevier Ltd Most constitutive models can only simulate cumulative deformation after a limited number of cycles. However, railroad ballast usually experiences a large number of train passages that cause history-dependent long-term deformation. Fractional calculus is an efficient tool for modelling this phenomenon and therefore is incorporated into a constitutive model for predicting the cumulative deformation. The proposed model is further validated by comparing the model predictions with a series of corresponding experimental results. It is observed that the proposed model can realistically simulate the cumulative deformation of ballast from the onset of loading up to a large number of load cycles.

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http://hdl.handle.net/10453/65875