000004743 001__ 4743 000004743 005__ 20141119144549.0 000004743 04107 $$aeng 000004743 046__ $$k2002-06-02 000004743 100__ $$aBodin, Didier 000004743 24500 $$aA CONTINUUM DAMAGE APPROACH OF ASPHALT CONCRETE FATIGUE TESTS 000004743 24630 $$n15.$$pProceedings of the 15th ASCE Engineering Mechanics Division Conference 000004743 260__ $$bColumbia University in the City of New York 000004743 506__ $$arestricted 000004743 520__ $$2eng$$aTo forecast pavement fatigue cracking, fatigue performances of asphalt mixtures are assessed using laboratory cyclic fatigue tests. A damage model is implemented to predict the behavior of asphalt mixtures during these tests. Under sinusoidal loading, the evolution of the complex modulus of the material is defined as the damage variable associated to a microcracking mechanism. Its evolution during fatigue tests is described by an elasticity based, nonlocal damage model. A cycle based time treatment is implemented into a finite element code, to simulate high cycle fatigue tests. The damage model parameters identification is performed using uniaxial fatigue tests. With these parameters, bending fatigue tests simulation results are discussed. The comparison between simulated results and experimental data points out a good approximation of the fracture process before damage localization in the specimen. 000004743 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb. 000004743 653__ $$afatigue, damage, nonlocal, finite element, asphalt concrete 000004743 7112_ $$a15th ASCE Engineering Mechanics Division Conference$$cNew York (US)$$d2002-06-02 / 2002-06-05$$gEM2002 000004743 720__ $$aBodin, Didier$$iPijaudier-Cabot, Gilles$$iRoche, Chantal de La$$iPiau, Jean-Michel 000004743 8560_ $$ffischerc@itam.cas.cz 000004743 8564_ $$s191153$$uhttps://invenio.itam.cas.cz/record/4743/files/263.pdf$$yOriginal version of the author's contribution as presented on CD, . 000004743 962__ $$r4594 000004743 980__ $$aPAPER