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Characteristics of constitutive relations in soil plasticity for undrained behavior
Chalmers University of Technology, Department of Structural Mechanics.
Luleå tekniska universitet.
Polish Academy of Sciences, Institute of Fundamental Technological Researeh.
1992 (English)In: International Journal of Solids and Structures, ISSN 0020-7683, E-ISSN 1879-2146, Vol. 29, no 3, p. 363-380Article in journal (Refereed) Published
Abstract [en]

Elastic-plastic relations which are subjected to the constraint of incompressibilily, that is pertinent to undruined behavior of soils, are assessed and compared with the relations for drained behavior. The tangent relations for mixed control variables (total stress and strain components) are established explicitly. The criterion signalling plastic loading, and elastic unloading, is considered in particular. A criterion for unique response, as expressed in terms of elastic and plastic loading, is formulated as a condition on the particular plastic modulus that corresponds to undrained behavior. Stability is discussed in terms of appropriate critical values of the plastic modulus. It appears that, for a frictional material, dilatancy has a stabilizing effect whereas contractancy may be destabilizing compared to drained behavior.

Place, publisher, year, edition, pages
1992. Vol. 29, no 3, p. 363-380
National Category
Geotechnical Engineering
Research subject
Soil Mechanics
Identifiers
URN: urn:nbn:se:ltu:diva-5672DOI: 10.1016/0020-7683(92)90205-8ISI: A1992GQ75900007Scopus ID: 2-s2.0-0026702072Local ID: 3d618510-8af7-11de-8da0-000ea68e967bOAI: oai:DiVA.org:ltu-5672DiVA, id: diva2:978546
Note
Godkänd; 1992; 20090817 (andbra)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved

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