Cyclic response of granular soils evaluated through a strain hardening model incorporated into the generalized plasticity framework

M. B.Can Ulker*

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Özet

In this study, constitutive behavior of granular soils is modeled through a generalized plasticity-based theoretical framework. The soil hardening is addressed by a novel relationship proposed to calculate plastic strains and their evolution during loading history. The model is effective in predicting the response and incorporating it into a numerical scheme. Focus is given to stress ratios yielding liquefaction in a few stress cycles. The proposed hardening law is based upon a combined deviatoric-volumetric hardening rule updating the stress-strain relationship and plastic strain vector. Numerous undrained monotonic and cyclic triaxial tests are simulated for verification of the constitutive formulation. Results indicate that the developed model for sand-like cohesionless soils proves to match fairly well with the available experimental data. Plastic strains are calculated accurately and accumulated pore pressures are well captured. Triaxial test simulations exhibit a successfully improved way of capturing the essential static and cyclic behavior of granular soils.

Orijinal dilİngilizce
DergiInternational Journal of Geotechnical Engineering
DOI'lar
Yayın durumuKabul Edilmiş/Basında - 2024

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© 2024 Informa UK Limited, trading as Taylor & Francis Group.

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