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

T. Hueckel, E. Tutumluer

Research output: Contribution to journalArticlepeer-review

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).

Original languageEnglish (US)
Pages (from-to)311-349
Number of pages39
JournalComputers and Geotechnics
Volume16
Issue number4
DOIs
StatePublished - 1994
Externally publishedYes

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology
  • Computer Science Applications

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