000004606 001__ 4606
000004606 005__ 20141119144538.0
000004606 04107 $$aeng
000004606 046__ $$k2002-06-02
000004606 100__ $$aAugustesen, Anders
000004606 24500 $$aEXAMINATION OF MODELS FOR TIME DEPENDENT BEHAVIOR OF SOILS

000004606 24630 $$n15.$$pProceedings of the 15th ASCE Engineering Mechanics Division Conference
000004606 260__ $$bColumbia University in the City of New York
000004606 506__ $$arestricted
000004606 520__ $$2eng$$aVarious constitutive relations have been proposed to represent time-dependent deformation behavior of soils. They can be divided into (1) Empirical models (2) Rheological models and (3) General stress-strain time models. In this paper special emphasis is placed on elasto-viscoplastic models that combine inviscid elastic and time dependent plastic behavior. Elasto-viscoplastic models belong to the category General stress-strain-time models and they can mainly be divided into (1) Models based on the concept of overstress and (2) Models based on the concept of non-stationary flow surface theory. A short presentation of the theories is given. Furthermore, the structure of the theories is described and compared. Finally, it is concluded that existing models in principle are able to model clay, whereas time effects for sand cannot be described by means of existing models.

000004606 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000004606 653__ $$aclay, constitutive models, correspondence principle, empirical models, overstress theory, non-stationary flow surface theory, rheological models, sand, time effects.

000004606 7112_ $$a15th ASCE Engineering Mechanics Division Conference$$cNew York (US)$$d2002-06-02 / 2002-06-05$$gEM2002
000004606 720__ $$aAugustesen, Anders$$iLiingaard, Morten$$iLade, Poul V.
000004606 8560_ $$ffischerc@itam.cas.cz
000004606 8564_ $$s237133$$uhttp://invenio.itam.cas.cz/record/4606/files/039.pdf$$yOriginal version of the author's contribution as presented on CD, .
000004606 962__ $$r4594
000004606 980__ $$aPAPER