An open-source unconstrained stress updating algorithm for the modified Cam-clay model

2021 ◽  
pp. 114356
Author(s):  
Xin Zhou ◽  
Dechun Lu ◽  
Yaning Zhang ◽  
Xiuli Du ◽  
Timon Rabczuk
Keyword(s):  
Open Source ◽  
Clay Model ◽  
Modified Cam Clay ◽  
Cam Clay

Some remarks on implicit integration of modified cam-clay model

2019 ◽  
pp. 297-304
Author(s):  
Aleksandar D. Spasojević ◽  
Dejan M. Divac ◽  
Nenad M. Šušić
Keyword(s):  
Implicit Integration ◽  
Clay Model ◽  
Modified Cam Clay ◽  
Cam Clay

scholarly journals Experimental Study of Silty Clay Plane Strain Tri-axial Test under RTC Path and Modified Cam-clay Model

2018 ◽  
Vol 4 (3) ◽  
pp. 518
Author(s):  
Tao Cheng ◽  
Yi Zhang ◽  
Keqin Yan
Keyword(s):  
Plane Strain ◽  
Stress Path ◽  
Physical Parameters ◽  
Silty Clay ◽  
Model Framework ◽  
Loading Test ◽  
Clay Model ◽  
Modified Cam Clay ◽  
Institute Of Technology ◽  
Cam Clay

The character of geomaterials is affected by stress path remarkably. Under different stress paths, the stress-strain characteristics of geomaterials are difference. For the unloading path in existing engineering situation, the physical parameters and constitutive model is usually determined by loading test. The path to uninstall the actual project conditions which may be a larger error. Therefore, this work proceeding from the actual project, deep excavation of the lateral unloading condition is analysed. The tests of CTC path and RTC path on silty clay in Huangshi city of china by multi-path tri-axial plane strain are carried on in the geotechnical Engineering Laboratory of Huangshi Institute of Technology. Then, the phenomenon under the two stress paths are compared with each other and describing the differences between them. The mechanical properties in the RTC stress path is analyzed mainly. Based on the Cam-Clay model framework, then derived this material yield equation based on Cam-clay model, Laiding the foundation for the numerical analysis.

scholarly journals RIGID PLASTIC FINITE ELEMENT METHOD USING MODIFIED CAM-CLAY MODEL

2017 ◽  
Vol 73 (2) ◽  
pp. I_333-I_342
Author(s):  
Yuki YAMAKURI ◽  
Shun-ichi KOBAYASHI ◽  
Jun SAITO ◽  
Tatsunori MATSUMOTO
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Rigid Plastic ◽  
Clay Model ◽  
Modified Cam Clay ◽  
Cam Clay ◽  
Element Method

Study on Effects of Ground Deformation Based on Foundation Pit Excavation

2013 ◽  
Vol 671-674 ◽  
pp. 357-362
Author(s):  
Hai Ming Liu ◽  
Jing Cao ◽  
Wei Feng Zhang
Keyword(s):  
Ground Deformation ◽  
Underground Space ◽  
Close Attention ◽  
Foundation Pit ◽  
Clay Model ◽  
Modified Cam Clay ◽  
Peaty Soil ◽  
Flac 3D ◽  
Coulomb Model ◽  
Cam Clay

With the continuous development of urban underground space, the environmental effects of foundation pit excavation have been paid extensive close attention. Unfortunately, there are few researches in mucky soil and peaty soil. Adopted the software of FLAC-3D, the ground deformation due to the foundation pit excavation is simulated. Considering the characteristic of the soil, the Modified Cam-clay model and Mohr-coulomb model are used during the simulation. Meanwhile, the structure units are used to simulate foundation pit structure. The results of the field measurement and numerical simulation suggest that the influenced range soil is about 2.7 times of the excavation depth. Furthermore, the Modified Cam-clay model can obtain a better result to simulate the mucky soil and peaty soil in Kunming. The results can be referred to design and construct of foundation pits.

scholarly journals Pressure-controlled cavity expansion in clay

2006 ◽  
Vol 43 (7) ◽  
pp. 714-725 ◽  
Author(s):  
Alfred SK Au ◽  
Albert T Yeung ◽  
Kenichi Soga
Keyword(s):  
Numerical Simulation ◽  
Aspect Ratio ◽  
Experimental Studies ◽  
Cavity Expansion ◽  
Reliable Technique ◽  
Clay Model ◽  
Modified Cam Clay ◽  
Pressure Controlled ◽  
Cam Clay ◽  
Good Agreement

Experimental studies and numerical simulation of experiments were conducted on pressure-controlled cavity expansion in clay. The modified Cam-clay model was used to describe the clay behaviour. The experimental data are in good agreement with the simulation results, indicating that the adopted numerical simulation procedure is a plausible and reliable technique to study the fundamental behaviour of pressure-controlled cavity expansion. A new parameter, cavity aspect ratio (CAR), was defined to better describe the cavity shape. Different phenomena during the cavity expansion process are thus studied numerically, and the results are presented in this paper.Key words: pressure-controlled cavity expansion, numerical simulation, laboratory investigation, modified Cam-clay model, cavity aspect ratio (CAR), ABAQUS.

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