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A novel semi-micro multilaminate elasto-plastic model for the liquefaction of sand
Abstract After the liquefaction of sand, the prediction of anisotropy and heterogeneity is one of the complexities of constitutive law. This study aimed to develop a method to more effectively assess anisotropy and strain and stress distributions, and determine their history in cohesionless soil. To achieve this objective, instead of defining all the direction-dependent events on the three orthogonal planes of the Cartesian coordinate system, numerical integration was utilized to make use of 17 planes with pre-defined directions. This leads to a more accurate and powerful assessment of anisotropy and its effects. The constitutive equations of the proposed model were adjusted with a multilaminate framework, and its result for different monotonic and cyclic loading, drained and undrained conditions, and different pressures and void ratios were verified using the experimental data. Finally, the model's performance in predicting induced anisotropy is demonstrated under cyclic mobility conditions on the 17 planes.
Highlights Presents an advanced modified model to predict liquefaction. This comprehensive model can be used under monotonic and cyclic loading conditions. Using this model, it is possible to predict full anisotropy in soils by defining 17 planes.
A novel semi-micro multilaminate elasto-plastic model for the liquefaction of sand
Abstract After the liquefaction of sand, the prediction of anisotropy and heterogeneity is one of the complexities of constitutive law. This study aimed to develop a method to more effectively assess anisotropy and strain and stress distributions, and determine their history in cohesionless soil. To achieve this objective, instead of defining all the direction-dependent events on the three orthogonal planes of the Cartesian coordinate system, numerical integration was utilized to make use of 17 planes with pre-defined directions. This leads to a more accurate and powerful assessment of anisotropy and its effects. The constitutive equations of the proposed model were adjusted with a multilaminate framework, and its result for different monotonic and cyclic loading, drained and undrained conditions, and different pressures and void ratios were verified using the experimental data. Finally, the model's performance in predicting induced anisotropy is demonstrated under cyclic mobility conditions on the 17 planes.
Highlights Presents an advanced modified model to predict liquefaction. This comprehensive model can be used under monotonic and cyclic loading conditions. Using this model, it is possible to predict full anisotropy in soils by defining 17 planes.
A novel semi-micro multilaminate elasto-plastic model for the liquefaction of sand
Dashti, Hadi (author) / Sadrnejad, Seyed Amirodin (author) / Ganjian, Navid (author)
Soil Dynamics and Earthquake Engineering ; 124 ; 121-135
2019-05-18
15 pages
Article (Journal)
Electronic Resource
English
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