A non-linear constitutive model for describing the mechanical behaviour of frozen ground and permafrost

Loria, Alessandro F. Rotta; Frigo, Barbara; Chiaia, Bernardino

doi:10.1016/j.coldregions.2016.10.010

Cited by 31 publications

(2 citation statements)

References 55 publications

(54 reference statements)

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“…Furthermore, an elastoplastic framework was developed for frozen soil by deducing the cross-anisotropic damage variables. A relatively simple elastoplastic model was proposed to evaluate the nonlinear mechanical performance of frozen silt in terms of the related flow rules [ 67 ]. This kind of soil is regularly exposed to impact loading along with conventional quasi-static loading.…”

Section: Classifying the Constitutive Relationsmentioning

confidence: 99%

Extensive overview of soil constitutive relations and applications for geotechnical engineering problems

Onyelowe

Ebid

Sujatha

et al. 2023

Heliyon

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Section: Classifying the Constitutive Relationsmentioning

confidence: 99%

Extensive overview of soil constitutive relations and applications for geotechnical engineering problems

Onyelowe

Ebid

Sujatha

et al. 2023

Heliyon

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“…Over the last few years, several attempts have been made to develop constitutive and numerical models for frozen soils. Yang et al (2010) Rotta Loria et al, (2017) introduced a nonlinear elastic plastic model with associated flow rule, which is able to simulate the non-linear behavior of frozen silt. The validity of the developed model was verified using data obtained through triaxial tests from the literature, and it was shown that it can reasonably predict the nonlinearity of the behavior of frozen silt at low and high confinement.…”

Section: Introductionmentioning

confidence: 99%

A new approach to modeling the behavior of frozen soils

Nassr

Esmaeili‐Falak

Katebi

et al. 2018

Engineering Geology

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In this paper a new approach is presented for modeling the behavior of frozen soils. A datamining technique, Evolutionary Polynomial Regression (EPR), is used for modeling the thermo-mechanical behavior of frozen soils including the effects of confining pressure, strain rate and temperature. EPR enables to create explicit and well-structured equations representing the mechanical and thermal behavior of frozen soil using experimental data.A comprehensive set of triaxial tests were carried out on samples of a frozen soil and the data were used for training and verification of the EPR model. The developed EPR model was also used to simulate the entire stress-strain curve of triaxial tests, the data for which were not used during the training of the EPR model. The results of the EPR model predictions were compared with the actual data and it was shown that the proposed methodology can extract and reproduce the behavior of the frozen soil with a very high accuracy. It was also shown that the EPR model is able to accurately generalize the predictions to unseen cases. A sensitivity analysis revealed that the model developed from raw experimental data is able to extract and effectively represent the underlying mechanics of the behavior of frozen soils. The proposed methodology presents a unified approach to modeling of materials that can also help the user gain a deeper insight into the behavior of the materials. The main advantages of the proposed technique in modeling the complex behavior of frozen soil have been highlighted.

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Study thermo-hydro-mechanical coupling behaviors of saturated frozen soil based on granular solid hydrodynamics theory

et al. 2021

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A non-linear constitutive model for describing the mechanical behaviour of frozen ground and permafrost

Cited by 31 publications

References 55 publications

Extensive overview of soil constitutive relations and applications for geotechnical engineering problems

Extensive overview of soil constitutive relations and applications for geotechnical engineering problems

A new approach to modeling the behavior of frozen soils

Study thermo-hydro-mechanical coupling behaviors of saturated frozen soil based on granular solid hydrodynamics theory

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