Hi everyone, I’m trying to simulate a triaxial test by using Matlab, adopting the sand hypoplasticity model with strain softening but so far couldn’t succeed. Would anyone help me with such Matlab m.file. Thanks in advance.
Tags: matlabdriverMatLab m.file
Related Articles
-
-
ERROR Message when using UMAT_hcea with ABAQUS
Lukas Reindl||Constitutive Modelling|3 |
Views 4,850
Hi all! I am modelling some triaxial compressions in ABAQUS with Weald Clay. The constitutive law i am using is the clay hypoplasticity by Mašín. When running the program using […] -
boundary surface plasticity
rakshanda showkat||Constitutive Modelling|0 |
Views 4,201
Hello all, I am trying to implement boundary surface plasticity using Bardets model in MATLAB. But i am obtaining negative values for q and Dep. Any help in this regard […] -
Degradation ( disturbance ) of hypoplastic clay
jh xue||Constitutive Modelling|0 |
Views 1,911
Hi all, I want to do degradation (perturbation) of subplastic clay with ABAQUS, but I can’t do it with umat, changing K,A,sf in ABAQUS has no effect on the result, […] -
NorSand model for cyclic triaxial testing
A S M RIYAD||Constitutive Modelling|1 |
Views 7,570
Hi altruists, Hope all of you are doing well. I am looking for literature on the NorSand model, which considers the drained cyclic triaxial testing behavior. I have found a […] -
UMAT Code for Clay Hypoplasticity
Shen Wang||Constitutive Modelling|5 |
Views 4,898
Hello Everyone, I am using the UMAT code for clay hypoplasticity provided by Prof. Masin — https://soilmodels.com/download/plaxis-umat-hypoplas-zip/ I made a oedometeric test model in Abaqus2018 and applied the umat code […] -
Question about Interface between UMAT and VUMAT
Sina Niazi||Constitutive Modelling|1 |
Views 4,653
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 […] -
Convergence issue of unload of clay consolidation in Abaqus
Shen Wang||Constitutive Modelling|5 |
Views 5,510
Hello, I was trying to simulate the unloading process of clay consolidation in Abaqus using clay hypoplasticity umat (https://soilmodels.com/download/plaxis-umat-hypoplas-zip/). But I had a convergence issue showing in Fig.1. The model […]
Search SoilModels Website
Recent posts
-
Hardening Soil or Hardening Soil-Small umat in Abaqus 2.1.2025
-
hypoplastic interface 11.12.2024
-
Triaxial Test Driver SANISAND 30.10.2024
-
REQUEST FOR EXPRESSIONS OF INTEREST (REOI) FOR PROJECT IN CONSTITUTIVE MODELLING 23.10.2024
-
Programme of the ALERT Olek Zienkiewicz school on Constitutive Modelling of Geomaterials, February 3 to 7, 2025, Prague, Czech Republic 11.10.2024
-
Connecting remote sensors to the Plaxis FEM 3D using python 26.7.2024
-
Intergranular Strain Extensions 16.7.2024
-
Abaqus Hypoplasticity Primary Variable Is Not Available 1.7.2024
-
Vumat to calculate excess pore in Coupled Eulerian-Lagrangian ABAQUS 1.7.2024
-
Drucker Prager Cap Hardening Model 20.6.2024
-
Soil model for sand under drained cyclic loading 15.6.2024
-
In Abaqus how do we use *DLOAD for defining both user-defined pressure and body force simultaneously? 15.6.2024
Recent Comments
- Pouya Zahedi on UMAT Code for Modified Cam Clay model
- Xiuzhe Wang on Hypoplasticity sand convergence issues
- Zheng Wanying on Example of FLAC3D data file
- Zheng Wanying on SANISAND for FLAC3D Download
- Anis Kheffache on Problem in using Hypoplastic model for sand in Abaqus.
- Micha Van der Sloot on PM4Sand for Plaxis Download
- Kiruthika Perumal on PM4Sand for Plaxis Download
- Shishir Kumar Sikder Amit on Mohr Coulomb umat in Abaqus
- Zhentao Liu on Hypoplasticity sand convergence issues
- Zhentao Liu on Combining Hypoplastic-sand and Hypoplastic-clay in one UMAT file
- Sumin Song on Clay and Sand hypoplasticity UMAT and Plaxis implementations, including UMAT-Plaxis interface
- KHA DIDJA on Issue in applying SANISAND04 UMAT to Boundary-Value-Problem
- Zhentao Liu on Problem in simulating CPT using SANISAND04
- Jin-Hu Li on Problem in simulating CPT using SANISAND04
- Johan Clausen on Triaxial compression test using Mohr-Coulomb model in Abaqus
- Ismail Khan on SANISAND for FLAC3D Download
- Tao Zhu on UMAT and oneAPI compiler issues. (SOLVED…i hope :p)
- Lei DAI on SANISAND for FLAC3D Download
Hi Ala,
You did not give us enough information on what you need.
So you try to build your own element test driver in matlab with hypoplasticity, right?
We do not know whether
(you have functional driver, but you have problem in hypoplasticity implementation)
OR
(you have functional driver and hypoplasticity implementation, but triaxial test simulation does not work)
OR
(you have nothing)
Let us know,
David
Thank you dear David for your prompt response. Yes, I’m trying to build a Matlab m file implementing the hypoplasticity constitutive relation to simulate an element triaxial test but I’m not professional neither in Matlab or in Hypoplasticity. My problem is the implementation the hypoplasticity tensorial equations in Matlab, especially when strain softening is considered. I am looking for a sample m.file in this respect.
I see,
So please check the following driver:
https://soilmodels.com/download/matlab-driver/
Regards David
Dear David, I’m afraid that the link you sent doesn’t work!! I received the following message when I tried to download:
“Sorry! Download is not available yet.”
Best regards.
Ala
I see, it should be OK now.
Thank you so much dear David, I’ll try to figure out what is going on, although it is not (simple), at least for me!!
Best regards.