Hi everyone:
I am trying to use SANISAND as the constitutive model of soil, and use ABAQUS software to simulate pile-soil interaction. First step is “Geostatic”, the second step is “Static, General”. The first picture is the model parameters of SANSAND, and the second picture is the contour map of state variable 29 (sdv29).
As you can see, the red part in the second figure indicates that the excess pore water pressure U of the soil is negative, because UMAT sets the state variable 29 – excess pore water pressure U equal to the volume strain of the soil element multiplied by the volume modulus of water, that is, the volumetric strain of the soil element is positive(dilatancy). Is this normal? I have changed the initial void ratio of the soil several times, but the value of state variable 29 of the soil element near the pile is not negative. Can anyone explain this situation?
SANISAND pile-soil-interaction ABAQUS
Related Articles
-
Question on the Matlab driver – model hypo Cam Clay
Hengyi Kang||Constitutive Modelling|2 |
Views 2,310
As a beginner to soil constitutive modelling, I am learning the hypoplastic models by reading the matlab drivers. I am confused with the matlab file f_hyp.m in the model hypo_camclay. […] -
ExCalibre Automatic Calibration
Marco Hofer||Constitutive Modelling|2 |
Views 2,391
Hello all, i hava a problem with the Oedometer curves after the automatic calibration with ExCalibre. I took the Dobrany sand dataset for an automatic calibration and then i copied […] -
-
Question about Interface between UMAT and VUMAT
Sina Niazi||Constitutive Modelling|1 |
Views 2,644
Hello, I read the research report and the FORTRAN code available at https://soilmodels.com/download/vumat_umatinterface-zip/. It sounds quite interesting but I have a couple of questions about the FORTRAN code: 1- Did […] -
Sanisand umat with BV problem
Luis Aviles||Constitutive Modelling|0 |
Views 2,234
Hi, Does someone know if sanisand implementation has been used in a boundary value problem for slope? do you have any references? Thanks very much! -
Question on the Matlab driver-hypoplastic models
c sx||Constitutive Modelling|0 |
Views 2,405
Dear all, After carefully reading the matlab drivers of hypoplastic models, I was wondering whether the driver can simulate triaxial extension tests. As I change the constraints to reflect triaxial […] -
How can I solve the error in Abaqus mentioned below?
Sudipta Bhowmick||Constitutive Modelling|15 |
Views 3,454
I am using SANISAND to simulate a triaxial compression test under monotonic loading. But every time my simulations break and give the same message “Abaqus/Implicit Packager exited with an error […] -
Hypoplastic Model for Clays (Masin): Ag, ng or Gvh, n
Fernando Sarabia||Constitutive Modelling|1 |
Views 3,333
Dr. Masin I have downloaded the most recent dll for Plaxis that includes the HypoPlastic model for Clays that you developed. I see two new parameters (Gvh0 and n), both […]
Who is Online
No one is online right now
Search SoilModels Website
Recent posts
-
Zbraslav sand – Cyclic tests by Charles University 17.1.2023
-
New features in Excalibre 17.1.2023
-
Sanisand 13.1.2023
-
SaniSand Model in Plaxis 3D 9.12.2022
-
The GA-cal software for the automatic calibration of soil constitutive laws 2.12.2022
-
Abaqus OneAPI Compiler 10.11.2022
-
Few more Question on calculating lateral displacement of pile using hypoplastic clay model 3.10.2022
-
A question about the hypoplastic model in clay 22.9.2022
-
A High-Cycle Accumulation Model for Sand (Niemunis et al., 2005) 6.9.2022
-
Malaysian kaolin – Cyclic tests by Charles University 5.9.2022
-
Problem in calculating Lateral displacement of the pile using Hypoplastic clay model 2.9.2022
-
GTS NX 25.7.2022
Recent Comments
- Shruthija Sreeram on UMAT Implementation in Abaqus (Hypoplastic clay Subroutines)
- Paul Le Roux on Zbraslav sand – Cyclic tests by Charles University
- Amrane Moussa on Download package of a complete dataset “Zbraslav sand – Cyclic tests by Charles University”
- Francisco Mendez on The GA-cal software for the automatic calibration of soil constitutive laws
- Abolfazl Najafi on The GA-cal software for the automatic calibration of soil constitutive laws
- Arie Koot on SaniSand Model in Plaxis 3D
- Sajjad Shakeri on UDSM PLAXIS
- Anis Kheffache on Abaqus OneAPI Compiler
- Kassem Dib on How can I solve the error in Abaqus mentioned below?
- Dimitrios Konstantinidis on Issues in getting the negative values of q (mean deviatoric stress) while simulating cyclic triaxial test in ABAQUS using SANISAND subroutine.
- Tomáš Kadlíček on Download Package of Charles University Implementation of High Cycle Accumulation Model
- Safia EDAOUDI on Simulating Oedometer test in PLAXIS
- Safia EDAOUDI on Simulating the oedometric test with Abaqus
- MOHD SAQIB on Issues in getting the negative values of q (mean deviatoric stress) while simulating cyclic triaxial test in ABAQUS using SANISAND subroutine.
- Dimitrios Konstantinidis on Issues in getting the negative values of q (mean deviatoric stress) while simulating cyclic triaxial test in ABAQUS using SANISAND subroutine.
- Guilherme Castro on Download Package of Charles University Implementation of High Cycle Accumulation Model
- Giada Orlando on Download Package for Hypoplastic interface model and UMAT – FRIC interface
- Paul Le Roux on PM4Sand and PM4Silt models available
How set your parameters?