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Finite element modeling of fatigue shear tests: Contribution to pavement lifetime design under traffic loading

Abstract : Pavement overlaying is a repair technique mainly used for road network maintenance. Durability of pavement depend strongly on reflective cracking phenomenon. A pavement structure is submitted to thermal variations and traffic loading. All design methods assume opening mode and neglect shearing mode when trucks axles are closed to pre-existing cracks. Assuming an uncoupled approach, we limit ourselves to traffic loading and shear fatigue model is proposed. With taking into account of a localized degradation scheme, both crack initiation and crack propagation are considered. The damage law proposed is stemming of experimental data. This fatigue model is integrated in a finite element code (CAST3M). The principal objective of this study is the development of a model based on an overall resistant cord. The suggested modeling of the bituminous mixtures behavior above cracks would contribute to improve pavement repair design. In this way a numerical study has been carried out to quantify the effect of mesh refinement and loading conditions
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https://hal-unilim.archives-ouvertes.fr/hal-00680059
Contributeur : Christophe Petit <>
Soumis le : samedi 17 mars 2012 - 13:40:01
Dernière modification le : lundi 22 janvier 2018 - 14:36:01

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  • HAL Id : hal-00680059, version 1

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Farid Bouhas, Anne Millien, Christophe Petit. Finite element modeling of fatigue shear tests: Contribution to pavement lifetime design under traffic loading. 6th RILEM International Conference on Cracking in Pavements; Chicago, IL; 16 June 2008 through 18 June 2008; Code 83648, Jun 2008, CHICAGO, United States. pp.609-615. ⟨hal-00680059⟩

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