Thermal cracking of asphalt overlays is a leading cause of pavement deterioration. The thermoelastic response of a multilayered pavement structure is modeled using a transient thermal analysis followed by a quasi-static stress analysis at discrete time intervals using finite element analysis. Numerical analysis of two- and three-dimensional cracking problems is performed. Based on a fracture mechanics approach, the potential of thermal cracks to propagate through the overlay is examined using both a displacement formula and an energy-balance principle. The interaction between multiple cracks and the effect of bond between layers on crack propagation are examined. The proposed numerical methods for analysis of pavement thermal cracking provide a means to characterize and optimize different evolving materials and innovative pavement reinforcement techniques.


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    Titel :

    Low-Temperature Stresses and Fracture Analysis of Asphalt Overlays


    Weitere Titelangaben:

    Transportation Research Record


    Beteiligte:
    Shalaby, A. (Autor:in) / Halim, A. O. Abd El (Autor:in) / Easa, S. M. (Autor:in)


    Erscheinungsdatum :

    1996-01-01




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    Low-Temperature Stresses and Fracture Analysis of Asphalt Overlays

    Shalaby, A. / El Halm, A. / Easa, S. | Transportation Research Record | 1996



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