Elastoplastic soil constitutive laws generalized to partially saturated states

G. Bolzon, B. A. Schrefler, O. C. Zienkiewicz

Research output: Contribution to journalArticlepeer-review

308 Scopus citations


This paper deals with the plastic behaviour of partially saturated soils by modifying an existing model for fully saturated soils. The saturated soil model, formulated in the framework of generalized plasticity, considers volumetric as well as deviatoric strain hardening and takes account of the memory of past stress history and possible limit states. The generalization of the existing model to simulate the experimentally observed behaviour of partially saturated soils has been obtained by introducing Bishop's stress and suction as independent stress parameters and by modifying the hardening parameter and the yield condition to take into account the role of suction.

Original languageEnglish (US)
Pages (from-to)279-289
Number of pages11
Issue number2
StatePublished - Jun 1996


  • Constitutive relations
  • Partial saturation
  • Plasticity

ASJC Scopus subject areas

  • Earth and Planetary Sciences (miscellaneous)
  • Geotechnical Engineering and Engineering Geology


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