Modeling of elastic anisotropy due to one-dimensional plastic consolidation of clays

TitleModeling of elastic anisotropy due to one-dimensional plastic consolidation of clays
Publication TypeJournal Article
Year of Publication1994
AuthorsT Hueckel, and E Tutumluer
JournalComputers and Geotechnics
Volume16
Start Page311
Issue4
Pagination311 - 349
Date Published01/1994
Abstract

Experiments indicate that in one-dimensionally consolidated natural clays the elastic anisotropy is much stronger than the plastic strain anisotropy. Moreover, the elastic anisotropy appears to be dependent on the pre-consolidation strain. Coupled elasto-plastic constitutive law is shown to be able to simulate these anisotropy effects of natural clay deposits. In this law the elastic potential is not only a function of stress, but additionly of the plastic strain. The plastic strain comprises the geological process of pre-consolidation idealized as an one-dimensional plastic straining as well as a mechanically induced strain due to engineering activity. Calibration of the model and simulation of some stress paths are presented and related to the classical experimental results by Mitchell (1972). © 1994.

DOI10.1016/0266-352X(94)90013-2
Short TitleComputers and Geotechnics