Abstract
Asphalt mixtures mechanical properties often depend on the characteristics of its mastic. The latter includes the bitumen and small particles known as fillers. An analysis of bituminous scales (mastic or mortar) can predict the behaviour of its corresponding asphalt mix. This paper focuses on numerically computing and assessing the mechanical properties of bituminous materials i.e. complex modulus and fatigue. The purpose is to validate a numerical method able to assess fatigue damage via a heterogeneous multiscale approach. The modelling was realized based on finite element method and using the commercial ABAQUS software. The fatigue damage was presented through visual contour graphs as well as the local shear strain distribution. Applying the heterogeneous multiscale approach, it was possible to develop an effective numerical method to define the damage failure. The results showed that the values obtained numerically are similar to the experimental data with an error less than ten percent.
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