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    Dynamic simulation of a flexible pavement layers considering shakedown effects and soil-asphalt interaction

    Access Status
    Fulltext not available
    Authors
    Ghadimi, Behzad
    Nikraz, Hamid
    Rosano, Michele
    Date
    2016
    Type
    Journal Article
    
    Metadata
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    Citation
    Ghadimi, B. and Nikraz, H. and Rosano, M. 2016. Dynamic simulation of a flexible pavement layers considering shakedown effects and soil-asphalt interaction. Transportation Geotechnics. 7: pp. 40-58.
    Source Title
    Transportation Geotechnics
    DOI
    10.1016/j.trgeo.2016.04.003
    School
    Sustainable Engineering Group
    URI
    http://hdl.handle.net/20.500.11937/28178
    Collection
    • Curtin Research Publications
    Abstract

    This research evaluates the effects of shakedown and soil asphalt interaction on the dynamic simulation of flexible layered pavement structure. In a newly developed assessment methodology the shakedown concept is implemented for the granular layer under asphalt concrete. Under this assessment granular material behaviour changes from plastic to elastic as a function of the number of loading cycles. Interactional forces are considered through contact elements placed between the base and the asphalt layer. A nonlinear stress dependent model in the elastic domain and the Mohr-Coulomb constitutive model in the plastic domain are utilised to simulate the behaviour of granular layers and the results of the simulation are validated with previously published literature. One static simulation and three different dynamic simulations under cyclic Haversine loading of a single tyre dual axle are then compared with each other. The first dynamic simulation assumes Mohr-Coulomb plasticity, the second simulation considers the shakedown effects and the third simulation calculates soil asphalt interactional forces.

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