Site observations of flexible-pavement distress in various countries indicate frequent occurrence of longitudinal cracking in the top asphalt concrete layer. Analytic and numerical studies of multilayer elastic systems subject to wheel loads have linked longitudinal cracking to surface tensile stresses. However, due to the complexity of tire-pavement interaction resulting from tire geometry and loading conditions, accurate and fully representative distribution of surface stresses remains partly unknown. An attempt is made to provide information on surface stresses that derives from both theory and experiments. In particular, contact mechanics solutions are analyzed to gain information on loads that are subsequently used in performing numerical evaluation of surface stresses. Examples of three-dimensional computations using the finite-element code ABAQUS illustrate the analysis. The results indicate a greater potential for tensile stresses outside the tire treads than in the middle of the treads.


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    Title :

    Tire-Induced Surface Stresses in Flexible Pavements


    Additional title:

    Transportation Research Record: Journal of the Transportation Research Board


    Contributors:


    Publication date :

    2004-01-01




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English






    Effects of Tire Pressures on Flexible Pavements

    F. L. Roberts / J. T. Tielking / D. Middleton et al. | NTIS | 1985


    Effects of Tire Pressures on Flexible Pavements (Revised)

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