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On the Behavior of a Parallel Elasto-Visco-Plastic Model for Asphaltic Materials
KTH, School of Architecture and the Built Environment (ABE), Transport Science, Highway and Railway Engineering.ORCID iD: 0000-0003-3968-6778
2010 (English)In: Mechanics of materials (Print), ISSN 0167-6636, E-ISSN 1872-7743, Vol. 42, no 2, 109-117 p.Article in journal (Refereed) Published
Abstract [en]

The paper considers a dissipation energy based elasto-visco-plastic constitutive modelformulated by coupling in parallel visco-elastic and elasto-plastic components, which has been developed at Delft University of Technology for the response prediction ofasphaltic materials. To discuss the various aspects of the model under different creep loads, a simplified one-dimensional analytical solution is derived. Three different analytical cases are treated: visco-elastic response, elasto-visco-plastic response in which plasticity develops during the loading and instantaneous plasticity. The analyses show that the interaction between the parallel visco-elastic and elasto-plasticcomponents of the model are an important aspect of the predictive capabilities of themodel. A case is derived in which short duration loading of the model could lead to aprediction of increasing strains during the unloading phase. Care should be taken when choosing the material parameters of the model to avoid this erroneous prediction. 

Place, publisher, year, edition, pages
2010. Vol. 42, no 2, 109-117 p.
Keyword [en]
Creep, Elasto-visco-plasticity, Energy based models, Finite elements, Frozen energy release
National Category
Infrastructure Engineering
Identifiers
URN: urn:nbn:se:kth:diva-84067DOI: 10.1016/j.mechmat.2009.10.005ISI: 000274873400001OAI: oai:DiVA.org:kth-84067DiVA: diva2:499134
Note
TSC import 1903 2012-02-10. QC 20120215Available from: 2012-02-13 Created: 2012-02-13 Last updated: 2017-12-07Bibliographically approved

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Kringos, Nicole

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