000004918 001__ 4918
000004918 005__ 20141119144604.0
000004918 04107 $$aeng
000004918 046__ $$k2002-06-02
000004918 100__ $$aTashman, Laith
000004918 24500 $$aANISOTROPIC VISCOPLASTIC CONTINUUM DAMAGE MODEL FOR ASPHALT MIXES

000004918 24630 $$n15.$$pProceedings of the 15th ASCE Engineering Mechanics Division Conference
000004918 260__ $$bColumbia University in the City of New York
000004918 506__ $$arestricted
000004918 520__ $$2eng$$aPermanent deformation is one of the most significant distresses that cause severe damage in asphalt concrete (AC) pavements. It is caused by high traffic loads associated with high field temperatures. It is believed that permanent deformation develops at small rate and accelerates with the initiation of microcracks in asphalt pavements. An anisotropic viscoplastic continuum damage model is developed to describe the permanent deformation of asphalt pavements. The model is based on Perzyna’s formulation with DruckerPrager yield function modified to account for the material inherent anisotropy. The material anisotropy parameter is measured through microstructural analysis of two-dimensional sections of asphalt mixes. Furthermore, a damage parameter is included in the model in order to quantify the nucleation of microcracks that develop to macrocracks at later stages. The model's parameters are all determined from strength and static creep tests.

000004918 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000004918 653__ $$aviscoplastic, anisotropic, yield function, damage.

000004918 7112_ $$a15th ASCE Engineering Mechanics Division Conference$$cNew York (US)$$d2002-06-02 / 2002-06-05$$gEM2002
000004918 720__ $$aTashman, Laith$$iMasad, Eyad$$iZbib, Hussein$$iLittle, Dallas$$iKaloush, Kamil
000004918 8560_ $$ffischerc@itam.cas.cz
000004918 8564_ $$s317850$$uhttp://invenio.itam.cas.cz/record/4918/files/537.pdf$$yOriginal version of the author's contribution as presented on CD, .
000004918 962__ $$r4594
000004918 980__ $$aPAPER