000004631 001__ 4631
000004631 005__ 20141119144540.0
000004631 04107 $$aeng
000004631 046__ $$k2002-06-02
000004631 100__ $$aLi, X. S.
000004631 24500 $$aA CONSTITUTIVE PLATFORM FOR SAND MODELING

000004631 24630 $$n15.$$pProceedings of the 15th ASCE Engineering Mechanics Division Conference
000004631 260__ $$bColumbia University in the City of New York
000004631 506__ $$arestricted
000004631 520__ $$2eng$$aThis paper addresses the issue of sand dilatancy and the impact of fabric anisotropy. A platform model based on the concept of state-dependent dilatancy is introduced first, and a joint invariant, A, of the stress tensor and a second-order fabric tensor is developed afterwards. With this objective measure of the sand anisotropy state, the dilatancy and plastic hardening are formulated, and the critical-state line is assumed non-unique in the e-p-q space but unique in the e-p-q-A space. This simple approach is rigorous and correct within the fundamentals of anisotropic constitutive modeling and captures some of the most important features of stress-strain-strength responses of sand including the impact of inherent fabric anisotropy under proportional loading conditions.

000004631 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000004631 653__ $$aconstitutive modeling, critical state, dilatancy, inherent anisotropy, plastic hardening, sand, soil fabric

000004631 7112_ $$a15th ASCE Engineering Mechanics Division Conference$$cNew York (US)$$d2002-06-02 / 2002-06-05$$gEM2002
000004631 720__ $$aLi, X. S.
000004631 8560_ $$ffischerc@itam.cas.cz
000004631 8564_ $$s259303$$uhttps://invenio.itam.cas.cz/record/4631/files/087.pdf$$yOriginal version of the author's contribution as presented on CD, .
000004631 962__ $$r4594
000004631 980__ $$aPAPER