Dear all
Is the basic Hypo-Plastic model (Wollffersdorff’s model) suitable for 3D models?
Can I analyze 3D models with this UMAT? (https://soilmodels.com/download/umat-hyposand-uibk/)
Thank you
Sobhan
3D analysis with Basic Hypo-Plastic Model
Related Articles
-
Problem in using Hypoplastic model for sand in Abaqus.
isma khabis||Constitutive Modelling|17 |Views 3,879
Hello, I am using the UMAT code for sand hypoplasticity provided by Prof. Masin — https://soilmodels.com/download/plaxis-umat-hypoplas-zip/. I am simulating Axisymmetric condition in Abaqus. To check the results given by the […] -
PLAXIS 2D Embedded Pile Row
BENAN ZAHAWI||Constitutive Modelling|0 |Views 5,935
PLAXIS 2D require a “Lateral Resistance ” for the embedded pile row. The manuals are not very clear as to what the resistance represents? Is it on friction ( similar […] -
Difference between ExCalibre and Plaxis for Oedometer test
Marco Hofer||Constitutive Modelling|3 |Views 5,200
Hello all, i did the automatic calibration for the Dobrany and Motol sand and tried to model the soil tests also in Plaxis and then to compare both. For the […] -
Non convergence problem in abaqus using hpoeca Clay Hypoplasticity in slope model
Yang Xue||Constitutive Modelling|4 |Views 5,105
hello everyone! based on the strength reduction method in clay hypoplasticity, firstly, I used two steps belong to the static_general, the first step is impose a gravity load, and not […] -
Sanisand model
sahar saab||Constitutive Modelling|1 |Views 5,135
Is the Sanisand constitutive model 3 dimensional? Could it be used for dry sand cases using C4D8 elements? (drained sand) Is it possible to apply it in a dynamic implicit […] -
SaniSand Model in Plaxis 3D
Kassem Dib||Constitutive Modelling|1 |Views 20,652
Hello.. I am using SaniSand constitutive model, for the simulation of the behavior of onshore wind turbine using plaxis 3d. The dll file published in the website request the determination […] -
-
General questions on implementation of sand hypoplasticity model with Abaqus umat
Panpan Guo||Constitutive Modelling|5 |Views 5,687
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 […]
Search SoilModels Website
Recent posts
-
Animating Soil Mechanics 3.7.2026
-
GeoXPM 19.6.2026
-
Autumn School in Soil Modelling at NTNU 16.6.2026
-
Viscohypoplastic bentonite (VIBE) model 28.5.2026
-
Problem in “Hoek Brown Softening” Model 30.4.2026
-
XFEM Hydraulic Fracturing in Abaqus – Pore Pressure Not Updating & Extremely Small Time Steps 28.4.2026
-
Correct my Plaxis FEM simulation in foundation bearing capacity results 3.4.2026
-
mohr coulomb 2D yield surface vs 3D mohr coulomb yield surface 28.2.2026
-
Problem with GeoStudio (Seepage) software 16.2.2026
-
Prague Geotechnical Days 2026 3.2.2026
-
Postdoctoral position at COFS, UWA 28.7.2025
-
Hypoplasticity clay in ABAQUS 23.7.2025
Recent Comments
- Nabanita Saha on SANISAND pile-soil-interaction ABAQUS
- Hongjie Zhou on ExCalibre – SoilModels Automatic Calibration
- Ding Yan on Download package of a complete dataset “Karlsruhe Kaolin – Cyclic tests (T. Wichtmann)”
- Arie Koot on mohr coulomb 2D yield surface vs 3D mohr coulomb yield surface
- Arie Koot on Multilaminate Model (Schädlich & Schweiger)
- Amir F on Problem with GeoStudio (Seepage) software
- Nabanita Saha on set cavitation limit in ABAQUS/STANDARD when using SANISAND umat
- Nabanita Saha on SANISAND Abaqus UMAT and Plaxis implementations
- Tian Fapai on SANISAND Abaqus UMAT and Plaxis implementations
- Heng Wang on Multilaminate Model (Schädlich & Schweiger)
- Zhang Hongwei on Download Package of Charles University Implementation of High Cycle Accumulation Model
- Ruimin Chen on Problem with VUMAT interface
- Nitesh Bhume on UMAT and oneAPI compiler issues. (SOLVED…i hope :p)
- Aleksandar Kostadinovic on Karlsruhe fine sand – Cyclic tests (T. Wichtmann)
- Amrane Moussa on Kadlíček, T., Ochmański, M., Mašín, D. and Duque, J. (2022) Report on Charles University implementation of high cycle accumulation model
- Ramon Varghese on SANISAND for FLAC3D Download
- Shuhan Cao on Hardening Soil or Hardening Soil-Small umat in Abaqus
- Kuikui Guigui on Hypoplastic Interface Model (Stutz et al., 2016)








Yes, sure, the implementation is fully 3D even when used in 2D analysis. In 2D just the off-plane strain components are deactivated. Regards David
Hi,
I’ve used it for relative simple models without problems. The tricky part is to identify and define properly the boundary conditions, but this is independet from the constitutive model and is a problem of 3D modelling.