2D Multilayer Analysis of Electrified Roads with Charging Box Discontinuities
Résumé
To inductively charge the electric vehicle acting as an embedded power source, one of the solutions proposed is a charging box placed in one of the top layers of the electrified Roads. Box inclusions generate huge points of singularities indicating failure under the loading that cannot be analysed by usual pavement design tools. To take into account such a material discontinuity due to the box inclusion in asphalt overlays, a new development is done in a 2D specific tool. This tool, based on an advanced modelling, the M4-5nW, is dedicated more generally to the calculation of 3D multi-layered pavement structures with cracks. Separating the problem into multiple zones as per different materials in a layer, the problem is solved numerically. It provides then all the mechanical fields including interface stresses between layers. A parametric study is performed for different layer thicknesses and equivalent elastic material layers. This mechanical analysis, which includes a possible vertical crack between the box and the material layer, helps to predict failures such as the debonding between layers. An available choice of the material parameters for the first layers is finally proposed in that paper.
Domaines
Sciences de l'ingénieur [physics]
Origine : Fichiers produits par l'(les) auteur(s)