Microplane Model for Triaxial Deformation of Saturated Cohesive Soils

作者: Pere C. Prat , Zdeněk P. Bažant

DOI: 10.1061/(ASCE)0733-9410(1991)117:6(891)

关键词: Geotechnical engineeringFinite element methodPlasticityGeologyPore water pressureMathematical modelSoil mechanicsInfinitesimal strain theoryAnisotropyDeformation (mechanics)

摘要: A microplane model, in which the constitutive properties are characterized independently on planes of various orientations (microplanes), is presented. It found that basic scheme previously developed for concrete also valid clays, but with certain modifications. The micro‐macro constraint kinematic, and stresses each defined as explicit functions volumetric deviatoric normal shear components macroscopic strain tensor microplane. To account undrained behavior, a pore water pressure term affects only equations introduced. This makes possible uncoupling stress‐strain formulations. model calibrated verified by comparisons numerous data both drained tests, good agreement attained, including volume changes, evolution, diagrams. Although involves nine material parameters, four (or five...

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