Numerical analysis of cyclic loading effect on progressive failure of an earth dam upon a multi-laminate framework

Dadgar, Hamzeh Rahimi; Arjomand, Mohamad Ali; Arefnia, Ali

doi:10.28927/sr.2021.056720

Cited by 1 publication

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References 14 publications

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“…Malisetty et al [10] presented a model using a multilaminate framework based on generalized plasticity and associated critical state concepts to describe the mechanical behavior of granular materials. Many other researches have been done on multilaminate models, such as [11][12][13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Development of an elastoplastic constitutive model in the framework of the multilaminate method for numerical analyses of geotechnical structures

Falahatpour,

Oliaei,

Heidarzadeh

2024

Scientia Iranica

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In this study, a generalized constitutive model, in which the yield and potential plastic surfaces do not need to be explicitly defined, is presented in the framework of the multilaminate method. In this framework, the constitutive relations are defined as the relationship between volumetric and deviatoric stresses and strains on several planes in different directions, called microplane. A new volumetric-deviatoric stress space is defined on the microplane, which has a volumetric component similar to the definition of mean stress. However, the deviatoric component is defined as the resultant of a normal deviatoric component and two shear components on the microplane. The use of the new innovative stress space facilitates the application of volumetric-deviatoric based constitutive models in the multilaminate framework. The results of the model for several types of clay and sand in drained and undrained conditions have been validated with experimental data and results presented by similar models and it was observed that the proposed model, in addition to the simplicity of the formulation, can correctly predict the behavior of sand and clay materials in different conditions.

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