000004642 001__ 4642
000004642 005__ 20141119144541.0
000004642 04107 $$aeng
000004642 046__ $$k2002-06-02
000004642 100__ $$aPeng, Fang-Le
000004642 24500 $$aAN ENERGY-BASED MODELING OF SAND AND ITS FEM APPLICATION

000004642 24630 $$n15.$$pProceedings of the 15th ASCE Engineering Mechanics Division Conference
000004642 260__ $$bColumbia University in the City of New York
000004642 506__ $$arestricted
000004642 520__ $$2eng$$aThe paper describes a non-linear three-component model (an elasto-viscoplastic model) consisting of a hypo-elastic component connected in series to a combination of non-linear inviscid and viscous components connected in parallel. The hardening function for the inviscid component is an anisotropic relationship between a stress parameter and the modified irreversible strain energy, which is independent of stress path. The viscous component exhibits a nonlinear viscous property. Inherent and stress system-induced cross-anisotropic elasticity and strain localization into a shear band(s) having a thickness that is a function of particle size are considered. The FEM code incorporating the above-proposed model is validated by a direct comparison between the results from the FEM analysis and corresponding plane strain compression tests and model footing bearing capacity tests of unreinforced and reinforced Toyoura sand.

000004642 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000004642 653__ $$aSand, work-hardening, elasto-viscoplastic model, stress-strain relation, FEM

000004642 7112_ $$a15th ASCE Engineering Mechanics Division Conference$$cNew York (US)$$d2002-06-02 / 2002-06-05$$gEM2002
000004642 720__ $$aPeng, Fang-Le$$iTatsuoka, Fumio$$iSiddiquee, M. S. A.
000004642 8560_ $$ffischerc@itam.cas.cz
000004642 8564_ $$s478302$$uhttps://invenio.itam.cas.cz/record/4642/files/102.pdf$$yOriginal version of the author's contribution as presented on CD, .
000004642 962__ $$r4594
000004642 980__ $$aPAPER