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A platform for research: civil engineering, architecture and urbanism
Coupled Directional Dilation–Damage Approach to Model the Cyclic-Undrained Response of Soft Clay under Pure Principal Stress Axes Rotation
This study presents a directional constitutive model to predict the nonproportional cyclic behavior of undrained soft clay. A novel strategy consisting of a combination of directional dilation and the damage microplane model is used. Inherent cross-anisotropy is addressed via the modification of the integrated stress through an initial fabric tensor. The evolution of material microstructure is considered using the strain-dependent damage functions at the scale of microplanes. The variation of material stiffness is considered as a function of effective hydrostatic stress. The results were verified with available experimental data. The model accurately accounts for the effects of contributing factors, including the intermediate principal stress parameter.
Coupled Directional Dilation–Damage Approach to Model the Cyclic-Undrained Response of Soft Clay under Pure Principal Stress Axes Rotation
This study presents a directional constitutive model to predict the nonproportional cyclic behavior of undrained soft clay. A novel strategy consisting of a combination of directional dilation and the damage microplane model is used. Inherent cross-anisotropy is addressed via the modification of the integrated stress through an initial fabric tensor. The evolution of material microstructure is considered using the strain-dependent damage functions at the scale of microplanes. The variation of material stiffness is considered as a function of effective hydrostatic stress. The results were verified with available experimental data. The model accurately accounts for the effects of contributing factors, including the intermediate principal stress parameter.
Coupled Directional Dilation–Damage Approach to Model the Cyclic-Undrained Response of Soft Clay under Pure Principal Stress Axes Rotation
Shahrokhi, Sasan (author) / Barani, Omid Reza (author)
2020-03-03
Article (Journal)
Electronic Resource
Unknown
A Coupled Dilation–Damage Microplane Model for Sands Subjected to Cyclic Principal Stress Rotation
| Springer Verlag | 2021
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