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Developing a Constitutive Model Considering Fabric Anisotropy Under Monotonic Undrained Loading
Developing a constitutive model for granular material under undrained condition is becoming more popular nowadays because granular materials behave differently under different loading conditions. There have been many studies on the current soil material model. However, most of these soil constitutive models have some drawbacks such as that these soil models can describe the granular materials under certain loading conditions, input parameters used in the model must be adjusted, and the fabric anisotropy evolution is not developed properly. In this study, a soil material model is developed based on an effective and popular constitutive model and focuses on overcoming the obstacle where the Poisson’s ratio is adjusted from experiments to fit the laboratory loading curves and the fabric anisotropy in the model is not evolved properly. This developed model will use the actual Poisson’s ratio of the soil, and the fabric anisotropy evolution will be developed. By comparing the simulation results of the original model and the developed model with the experimental results, we observed that when using the experimental value of Poisson's ratio, the developed model can overcome the underestimation of the dilatancy under undrained condition. These results play an important role in the development of a constitutive model of granular behaviours, allowing researchers to further improve the developed model to be able to simulate other granular behaviours.
Developing a Constitutive Model Considering Fabric Anisotropy Under Monotonic Undrained Loading
Developing a constitutive model for granular material under undrained condition is becoming more popular nowadays because granular materials behave differently under different loading conditions. There have been many studies on the current soil material model. However, most of these soil constitutive models have some drawbacks such as that these soil models can describe the granular materials under certain loading conditions, input parameters used in the model must be adjusted, and the fabric anisotropy evolution is not developed properly. In this study, a soil material model is developed based on an effective and popular constitutive model and focuses on overcoming the obstacle where the Poisson’s ratio is adjusted from experiments to fit the laboratory loading curves and the fabric anisotropy in the model is not evolved properly. This developed model will use the actual Poisson’s ratio of the soil, and the fabric anisotropy evolution will be developed. By comparing the simulation results of the original model and the developed model with the experimental results, we observed that when using the experimental value of Poisson's ratio, the developed model can overcome the underestimation of the dilatancy under undrained condition. These results play an important role in the development of a constitutive model of granular behaviours, allowing researchers to further improve the developed model to be able to simulate other granular behaviours.
Developing a Constitutive Model Considering Fabric Anisotropy Under Monotonic Undrained Loading
Lecture Notes in Civil Engineering
Reddy, J. N. (editor) / Wang, Chien Ming (editor) / Luong, Van Hai (editor) / Le, Anh Tuan (editor) / Huynh, Nhat Minh (author)
The International Conference on Sustainable Civil Engineering and Architecture ; 2023 ; Da Nang City, Vietnam
Proceedings of the Third International Conference on Sustainable Civil Engineering and Architecture ; Chapter: 116 ; 1100-1108
2023-12-12
9 pages
Article/Chapter (Book)
Electronic Resource
English
Constitutive model , Fabric anisotropy , Granular material , Monotonic loading , Experimental result Energy , Sustainable Architecture/Green Buildings , Structural Materials , Geotechnical Engineering & Applied Earth Sciences , Building Construction and Design , Construction Management , Engineering
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