Dear All, I am currently using the hypoplastic model for gran materials from Prof. von Wolffersdorff to simulate soil excavations in a context of large deformations. I have been searching […]
SoilModels Forum
Simulating Oedometer test in PLAXIS
Balaji Bandaru||Laboratory testing|7 |
Views 1,113
How do I perform oedometer test simulation in PLAXIS
boundary surface plasticity
rakshanda showkat||Constitutive Modelling|0 |
Views 3,859
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 […]
I am looking for an example of the oedometric test similation with Abaqus, in particular : Load-Unload-Reload
SANISAND 2008 Model
MOHD SAQIB||Constitutive Modelling|0 |
Views 3,881
Hello Everyone, Can anyone have umat available for SANISAND 08 (Simple anisotropic sand plasticity model)?. Paper authored by Taiebat and Dafalias. They have used a closed type yield surface. Regards […]
UMAT Implementation in Abaqus (Hypoplastic clay Subroutines)
Lovinder Mann||Finite Elements|3 |
Views 3,712
Hi, I am working in Abaqus, aiming to model double porosity clay consolidation data by using hypoplastic clay model with meta stable structure. First, i just wanted to verify basic […]
Issues on reading xlsx extension for calibration input data
Abdiel Ramon Leon Bal||Laboratory testing|2 |
Views 475
Dear all, I am trying to calibrate the hypoplastic parameters for the hypo sand model with ExCalibre tool, using CID for a particular sand. The moment I try to load […]
Issues in getting the negative values of q (mean deviatoric stress) while simulating cyclic triaxial test in ABAQUS using SANISAND subroutine.
MOHD SAQIB||Constitutive Modelling|5 |
Views 4,281
Hello Everyone, I have been trying to simulate the cyclic triaxial test using the SANISAND04 subroutine. When I plotting the stress path (p-q plot), I am getting only the positive […]
Dear all, I am a Ph.D. student at Kharazmi University. Recently I have been trying to simulate a triaxial compression test using the hypoplasticity model for clay using ABAQUS. The […]
HP clay subroutine in Plaxis
muhammad shakeel||Finite Elements|5 |
Views 4,033
Dear Prof. Masin and Soil Model Community, I am using HP clay subroutine in Plaxis 3D to simulate soil structure interaction problem. I want void ratio and OCR variation along […]
Modeling cyclic undrained sandy soil triaxial test using ABAQUS
Shile Dong||Finite Elements|3 |
Views 3,832
Dear all, I am trying to use Abaqus to modeling undrained cyclic triaxial test for liquefiable soil. I am wondering how could I applied the cyclic load. I should apply […]
UMAT for NorSand
Shile Dong||Constitutive Modelling|0 |
Views 4,488
Dear all, I am pretty new in coding and using Abaqus. I have trouble with coding the UMAT for NorSand. If any of you have any good references, please share […]
Problem with Hypoplastic Vumat use with CEL in Abaqus
Abdulkader ELHAJ||Finite Elements|0 |
Views 3,360
Hello all, I am currently working on the FE modeling of anchors installation into the soil using the CEL analysis in Abaqus. I tried to use the hypoplastic vumat for […]
Interpreting results of sand hypoplastic model with Abaqus VUMAT
arsalan Ahmad||Constitutive Modelling|2 |
Views 4,535
Dear concern, Recently i have modelled the soil pile interaction using Abaqus CEL method. The hypoplastic behavior of the soil is model using user subroutine VUMAT. The properties of the […]
Interpreting results of sand hypoplastic model with Abaqus VUMAT
arsalan Ahmad||Finite Elements|0 |
Views 3,643
Dear concern, Recently i have modelled the soil pile interaction using Abaqus CEL method. The hypoplastic behavior of the soil is model using user subroutine VUMAT. The properties of the […]
Skin friction along depth of pile
Md Shafiqul Islam||Finite Elements|0 |
Views 3,351
Dear all, I am simulating static pile load test in the rock by using ABAQUS. For comparison of numerical results with the experimental, I need skin friction vs depth plot. […]
SANISAND pile-soil-interaction ABAQUS
Lee Jae Sung||Constitutive Modelling|1 |
Views 4,516
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 […]
Issues with Tochnog Professional not posting groundflow velocities
Fernando Lorenzo||Finite Elements|3 |
Views 3,200
I have been a =n user of the open source version of Tochnog for since 2004. I have been one of the maintainers and have contributed to the capabilities of […]
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 […]
a question on the clay hypoplasticity model with Abaqus umat
Tao Zhu||Finite Elements|7 |
Views 3,648
Dear all, I am a PhD student in Hohai University. Recently I have been trying to simulate a triaxial compression test using the hypoplasticity model for clay. The UMAT subroutine […]
UMAT Code for Modified Cam Clay model
Mehtab Alam||Constitutive Modelling|2 |
Views 5,001
I am trying to develop UMAT code for MCC, but facing difficulty. Is there any such files available which can help me to speed up. please refer. Thank you.
Mohr Coulomb umat in Abaqus
Shuhan Cao||Constitutive Modelling|4 |
Views 5,151
Dear all, does anyone have the umat code for Mohr Coulomb in Abaqus? For my current work I need a umat for Mohr Coulomb in Abaqus. It would be highly […]
ABAQUS-UMAT Help
Mehmet Gocmez||Finite Elements|2 |
Views 694
Hi everyone, I would like to ask if anyone has an example umat file for me to study to work on my master thesis researches. I would like to create […]
SANISAND umat issue
Philip Alkhoury||Finite Elements|2 |
Views 3,553
Hello everyone; I have implemented the Sanisand constitutive model (UMAT) in abaqus in the scope of performing a dynamic analysis on a 3D soil-pile interaction problem. I have succeded in […]
SANISAND pile-soil-interaction ABAQUS
Lee Jae Sung||Constitutive Modelling|2 |
Views 4,162
Hi everyone: I am trying to use SANISAND as the constitutive model of soil, and use ABAQUS software to simulate pile-soil interaction. Is it better to choose “Static, Genaral” analysis […]
Abaqus user defined field
Van Doan||Constitutive Modelling|2 |
Views 4,317
Hi, I am going to use the usdfld to function the density of sand changing due to confining pressure. I am not sure Abaqus will call the usdfld for every […]
Hardening parameters (yield stress & absolute plastic strain)
Amir Mohammad Yarahmadi||Constitutive Modelling|4 |
Views 5,576
Hi to everyone I want to model a Sand with Cap plasticity or Drucker Prager failure criterion in ABAQUS, and I have the result of Triaxial test (I’ve attached the […]
Errors of sand hypoplastic model with Abaqus Vumat
Kunpeng Wang||Constitutive Modelling|11 |
Views 5,115
Dear all, Recently, I have been working on the simulation of a pile-soil interaction with CEL method in Abaqus/Explicit. I simulate the sand with the Sand Hypoplasticity Model provided by […]
Barodesy download package including small strain stiffness and strength reduction (UMAT and PLAXIS dll)
Manuel Bode||Finite Elements|0 |
Views 3,333
A new download package for Clay Barodesy is available in the download section (https://soilmodels.com/barodesy/) The model uses the basic model of barodesy for clay (Medicus G. and Fellin W. 2017) […]
Dear all, After carefully reading the matlab drivers of hypoplastic models, I was wondering why there is not mix control undrained TX compression. I want to achieve the same result […]
Hypoplastic Interface Model: Does anybody implemented this model in FLAC3D
ruohan sun||Constitutive Modelling|2 |
Views 4,054
I want to use this model to simulate soil-structure interaction in FLAC3D software, so I was wondering does anybody implemented this model in FLAC3D, and could you please share your […]
Question on implementation of sand hypoplastic model with Abaqus umat
Kunpeng Wang||Constitutive Modelling|4 |
Views 4,377
Dear all, I am a PhD student in China University of geosciences. Recently, I have been working on the simulation of a pile-soil interaction with Abaqus. I simulate the sand […]
General questions on implementation of sand hypoplasticity model with Abaqus umat
Panpan Guo||Constitutive Modelling|5 |
Views 4,576
Dear all, I am a PhD student in Zhejiang University. Recently, I have been working on the simulation of a braced excavation with Abaqus. I want to simulate the soil […]
SANISAND 2008 model
MOHD SAQIB||Finite Elements|0 |
Views 3,274
Dear fellow, Anyone have SANISAND 2008 by Taiebat and Dafalias umat subroutine available for Abaqus. I have 2004 but I need 2008 one.
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_sand. […]
Dear all, I am currently writing a proposal for a (small & hopefully nice) eLearning project: Within the project, I would like to create animations related to constitutive modelling. I […]
PM4Silt software
Daniel Valencia||Finite Elements|5 |
Views 3,427
Hello everybody, Does somebody know a FEM Software with the implementation of PM4Silt model’s routine? I mean, one different from FLAC. Thanks for your help.
Factor of safety in Plaxis 3D using hypoplastic model for sand
Arno Crous||Finite Elements|1 |
Views 3,794
I am currently modelling a test conducted in the geotechnical centrifuge facility at HKUST. The test consisted of a sand slope with a rising water table. The slope height in […]
Post-doc position in energy geotechnics at Aarhus University
Hans Henning Stutz||Position Announcements|0 |
Views 1,509
Applications are welcome for a 1.5-year postdoc position (with extension opportunities) to investigate the cyclic behaviour of a geomembrane energy storage system. The successful candidate will investigate the cyclic behaviour […]
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 […]
Slope stability calculation with hypoplasticity using phi-c reduction available now in download section
David Mašín||Finite Elements|0 |
Views 3,711
The strength reduction method in clay hypoplasticity now available
SANICLAY-B (2018) how to calculate Dep
Steve Xu||Constitutive Modelling|0 |
Views 4,148
Dear fellows, I have been working on coding SANICLAY-B model (2018) . Now I have one question in terms of this model. But I am stuck now. I have two […]
ABAQUS modeling: Warning about unconnected regions when using hypoplasticity subroutine
Jasmine Lokesh||Finite Elements|0 |
Views 4,673
I ran a simple 3D model with symmetry boundary conditions first using elastic material and then as hypoplastic using a subroutine. However, in the former case, I don’t get the […]
Calibration of the von Wolffersdorff model using Genetic Algorithms
Francisco Mendez||Constitutive Modelling|3 |
Views 4,091
I am happy to announce that our pre-print paper, “Calibration of the von Wolffersdorff model using Genetic Algorithms”, is available on researchgate: https://www.researchgate.net/publication/342198062_Calibration_of_the_von_Wolffersdorff_model_using_Genetic_Algorithms. In this article, we propose a novel […]
Hi, I am doing Plane strain 2D simulation of GRPS embankment in ABAQUS, i encountered a problem that results of with geogrid and without geogrid both are showing same deflection. […]
Rate dependent plastic yield in Tochnog Question
Marlon Hahn||Constitutive Modelling|0 |
Views 3,966
Hi, I am new to Tochnog and really appreciate the open source modeling chain (gmsh->Tochnog->paraview). So far, I’m only familiar with commercial codes, e.g. Abaqus. I actually deal with metal […]
need help in Flac3d6
Ahmed Mahir||Constitutive Modelling|0 |
Views 4,075
dear user hello i intend to build a numerical model using flac3d 6 software i build the geometry with extrusion pane and set all values for pile – soil interaction […]
SImulation with hypoplastic model for granular materials in ABAQUS
yusheng yang||Constitutive Modelling|2 |
Views 4,352
Hello, I want to use the hypoplastic model for granular materials downloaded from https://soilmodels.com/download/plaxis-umat-hypoplas-zip. The UMAT file umat.for is the model for sand. I followed the instruction https://web.natur.cuni.cz/uhigug/masin/plaxumat/node5.html. I have […]
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