An Evaluation of Different Constitutive Models to Predict the Directional Response of a Reconstituted Fine-Grained Soil

Tamagnini, Claudio; Maš́ın, David; Costanzo, Daniele; Viggiani, Gioacchino

doi:10.1007/978-3-540-35724-7_9

Cited by 7 publications

(7 citation statements)

References 25 publications

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“…These results were followed by numerical investigations using DEM with rigid spheres [3] and used for evaluation of predictive capabilities of different constitutive models [23,33].…”

Section: Response Envelopes and Swept-out-memory Statesmentioning

confidence: 99%

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State boundary surface of a hypoplastic model for clays

Maš́ın

2005

Computers and Geotechnics

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The paper studies some consequences of the mathematical formulation of the recently proposed hypoplastic model for clays. Particular attention is paid to the question if the hypoplastic model predicts existence of the state boundary surface, defined as a boundary of all admissible states in the stress-void ratio space. It is shown that the model enables us to derive an explicit formulation of asymptotic (swept-out-memory) states in the stress-void ratio space, which constitute so-called swept-out-memory surface. Further it is demonstrated that the swept-out-memory surface is a close approximation of the state boundary surface although, in general, they do not coincide. Finally, the influence of constitutive parameters on the shape of the swept-out-memory surface is studied. For parameters reasonable for fine-grained soils its shape is similar to the state boundary surface of the Modified Cam clay model.

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“…These results were followed by numerical investigations using DEM with rigid spheres [3] and used for evaluation of predictive capabilities of different constitutive models [23,33].…”

Section: Response Envelopes and Swept-out-memory Statesmentioning

confidence: 99%

“…Using this normalisation the state boundary surface may be, in general, fully characterised in the three-dimensional space defined by the principal components of the normalised stress tensor T n , where -√2T 33 [kPa] Fig. 4.…”

Section: Swept-out-memory Surfacementioning

confidence: 99%

State boundary surface of a hypoplastic model for clays

Maš́ın

2005

Computers and Geotechnics

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“…Response envelope is a useful tool for validating constitutive equations (Doanh, 2000;Kolymbas, 2000;Tamagnini, 2006;Sibille, 2011). The original concept of response-envelopes was presented Lewin & Burland (1970) and Gudehus (1979) in context with the development of constitutive equations.…”

Section: Response Envelope Predicted From the Proposed Modelmentioning

confidence: 99%

A Simple One-Scale Constitutive Model for Static Liquefaction of Sand-Silt Mixtures

Liu

Chang

2016

Lat. Am. j. solids struct.

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Instability of liquefaction is one of the major reasons which results in the failure of earth structure such as dam. The present study focuses on the simulation of static liquefaction behavior for granular materials such as sand and sand-silt mixtures. Based on micromechanical analysis of inter-particle behavior, a simple one-scale model is proposed to simulate the stress-strain response of sand; then the proposed model is extended to simulate the sand-silt mixtures using the mixture theory combining the properties of sand and silt according to their proportions. Empirical expressions are introduced to fit the critical state strength and the location of the critical state line for each mixture. Parameters of the model can be divided into two categories: the first seven parameters have the same values either with pure sand or pure silt for silt-sand with any given fines content; the other three parameters are the function of fines content and three more parameters are required to estimate their values. The predicted results of triaxial test of sand and sand-silt mixtures with different fine content, which has a good agreement with the results of laboratory tests, suggest that the proposed model can simulate static liquefaction behavior of sand and sand-silt mixtures.

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“…A sensitivity analysis was performed on the input data to evaluate the influence of these parameters on various constitutive models. Although some researchers have evaluated the performance of various models [9,13,14,23], data regarding the sensitivity of various input parameters have generally not been found in the literature for the type of clay described in this paper. Therefore, this research was performed to begin filling this gap.…”

Section: Introductionmentioning

confidence: 96%

Performance of constitutive models in predicting behavior of remolded clay

Bryson

Salehian

2011

Acta Geotech.

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The performance of several soil constitutive models was evaluated by comparing experimental results and simulated behavior of a medium plasticity clay. Input parameters for the soil constitutive models were obtained from triaxial compression and extension tests on normally and overconsolidated medium plasticity clay. The soil models employed for this study were the Cam Clay, Modified Cam Clay, 3-SKH, and S-CLAY1 models. In order to investigate the influence of some of the input parameters on the performance of the models, sensitivity analyses were also performed. The comparisons demonstrate that the Cam Clay model was able to predict the normally consolidated compressive behavior of medium plasticity clay. Both 3-SKH and Cam Clay models were able to produce acceptable predictions for stress-strain and stress path behavior for overconsolidated compression of the soil. The 3-SKH model did not perform satisfactorily for predicting pore pressure variations, while the Cam Clay model demonstrated fairly acceptable predictions. For the normally consolidated reduced extension test, the Modified Cam Clay and S-CLAY1 models performed better than the Cam Clay and 3-SKH models in predicting the stress-strain curve, pore pressure variations, and stress path.

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An Evaluation of Different Constitutive Models to Predict the Directional Response of a Reconstituted Fine-Grained Soil

Cited by 7 publications

References 25 publications

State boundary surface of a hypoplastic model for clays

State boundary surface of a hypoplastic model for clays

A Simple One-Scale Constitutive Model for Static Liquefaction of Sand-Silt Mixtures

Performance of constitutive models in predicting behavior of remolded clay

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