000004952 001__ 4952
000004952 005__ 20141119144607.0
000004952 04107 $$aeng
000004952 046__ $$k2002-06-02
000004952 100__ $$aYue, Dongyi
000004952 24500 $$aANISOTROPY OF CLAYS BASED ON BOUNDING SURFACE MODEL

000004952 24630 $$n15.$$pProceedings of the 15th ASCE Engineering Mechanics Division Conference
000004952 260__ $$bColumbia University in the City of New York
000004952 506__ $$arestricted
000004952 520__ $$2eng$$aThis paper presents an improved soil model based on anisotropic critical state theory and bounding surface plasticity. The anisotropic critical state theory of Dafalias was extended into three-dimensional stress space. In additional to the isotropic hardening rule, an anisotropic (rotational.) and a distortional hardening rule were incorporated into the bounding surface formulation. An anisotropic tensor and its development with the stress system and volumetric strain rate were introduced to function as the anisotropic rule. The projection center that is used to map the actual stress point to the imaginary stress point was specified along an axis that represents the initial anisotropic state in the stress space. The model requires 11 material parameters and was validated against the isotropic and anisotropic undrained triaxial test results of Kaolin clay. The effects of anisotropy in compression and extension modes were well described by proposed model. 

000004952 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000004952 653__ $$aConstitutive model, Bounding surface plasticity, anisotropy, kaolin, clay, undrained

000004952 7112_ $$a15th ASCE Engineering Mechanics Division Conference$$cNew York (US)$$d2002-06-02 / 2002-06-05$$gEM2002
000004952 720__ $$aYue, Dongyi$$iLing, Hoe I.$$iKaliakin, Victor N.$$iThemelis, Nickolas J.
000004952 8560_ $$ffischerc@itam.cas.cz
000004952 8564_ $$s660669$$uhttps://invenio.itam.cas.cz/record/4952/files/604.pdf$$yOriginal version of the author's contribution as presented on CD, .
000004952 962__ $$r4594
000004952 980__ $$aPAPER