Rheological elements on the basis of fractional derivatives

M. Oeser, A. Scarpas, C. Kasbergen, T. Pellinen

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

7 Scopus citations

Abstract

Traditionally, the time dependent behavior of bituminous mixtures has been modeled using linear visco-elastic theory described by creep and relaxation functions. Research, however, has shown that parameter identification for functions with linear time derivatives becomes problematic when the behavior of asphaltic mixtures needs to be matched for both the loading and unloading responses. This research explored the possibility of using fractional creep functions for modeling. The fractional creep functions allow for the development of non-linear viscous strain during the creep process. Parameter fitting and modeling of the above-mentioned phenomena by means of the developed material model was presented and compared to the actual test data.

Original languageBritish English
Title of host publicationAdvanced Characterisation of Pavement and Soil Engineering Materials - Proceedings of the International Conference on Advanced Characterisation of Pavement and Soil Engineering Materials
Pages59-68
Number of pages10
StatePublished - 2007
EventInternational Conference on Advanced Characterisation of Pavement and Soil Engineering Materials - Athens, Greece
Duration: 20 Jun 200722 Jun 2007

Publication series

NameAdvanced Characterisation of Pavement and Soil Engineering Materials - Proceedings of the International Conference on Advanced Characterisation of Pavement and Soil Engineering Materials
Volume1

Conference

ConferenceInternational Conference on Advanced Characterisation of Pavement and Soil Engineering Materials
Country/TerritoryGreece
CityAthens
Period20/06/0722/06/07

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