alexa Nano-mechanics modelling of deformation and failure behaviours at asphalt–aggregate interfaces


Journal of Civil & Environmental Engineering

Author(s): Yang Lu, Linbing Wang

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The nano-mechanics method has recently emerged as a powerful computational approach to model from nano to macro microstructure deformation and failure behaviours in materials. This paper reviews the advances of nano-mechanics modelling method. Then it introduces the recent advances of our research on the molecular origin of deformation and failure processes of asphalt–aggregate interfaces. This research includes studies of bulk mechanical properties of asphalt and mineral aggregate, as well as asphalt–aggregate interface properties under tensile or confined shear loading. The moisture sensitivity properties of the interface are also evaluated. Our nanoscale modelling work focuses on understanding the mechanical quantities of hierarchical asphalt/mineral materials to develop atomic scale structure–property relations. The large-scale atomistic simulation provides a powerful approach in studying mechanical properties of asphalt concrete materials. The paper concludes with a discussion of the significance of nanoscale structure–properties relationship of the interface structure under various loading conditions and water affinities of specific asphalt–aggregate pairs.

This article was published in International Journal of Pavement Engineering and referenced in Journal of Civil & Environmental Engineering

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