An Elastoplastic Constitutive Model of Unsaturated Soils with Coupling of Capillary Hysteresis and Skeletal Deformation

2013 ◽  
pp. 599-607
Author(s):  
Tian-tian Ma ◽  
Chang-fu Wei ◽  
Pan Chen ◽  
Hou-zhen Wei
Keyword(s):  
Constitutive Model ◽  
Unsaturated Soils ◽  
Capillary Hysteresis ◽  
Elastoplastic Constitutive Model ◽  
Skeletal Deformation

Thermo-elastoplastic constitutive model for unsaturated soils

2016 ◽  
Vol 11 (6) ◽  
pp. 1287-1302 ◽  
Author(s):  
Yonglin Xiong ◽  
Guanlin Ye ◽  
Hehua Zhu ◽  
Sheng Zhang ◽  
Feng Zhang
Keyword(s):  
Constitutive Model ◽  
Unsaturated Soils ◽  
Elastoplastic Constitutive Model

scholarly journals Elastoplastic Model and Three-Dimensional Method for Unsaturated Soils

2020 ◽  
Vol 2020 ◽  
pp. 1-13
Author(s):  
Jinjin Fang ◽  
Yixin Feng
Keyword(s):  
Constitutive Model ◽  
Unsaturated Soils ◽  
Three Dimensional ◽  
Three Dimensions ◽  
Degree Of Saturation ◽  
Triaxial Tests ◽  
Model Parameters ◽  
Elastoplastic Model ◽  
True Triaxial ◽  
Elastoplastic Constitutive Model

This paper proposed a new elastoplastic constitutive model to predict the deformation and strength behaviour of unsaturated soils. Applying the modified Cambridge model as a generalization, the degree of saturation is introduced into the elastoplastic model of unsaturated soil. Under the condition of ensuring that the model parameters are unchanged, the model is transformed into three dimensions based on the SMP criterion transformation stress method. Enhanced modified van Genuchten model under true triaxial conditions is also proposed in this paper to describe hydromechanical behaviours of unsaturated soils. The proposed constitutive model can capture the observed mechanical and hydraulic behaviours. Then, the model is validated via equal p and equal b value true triaxial tests, and the results show that a reasonable agreement can be obtained.

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