Dear all,
I’m facing trouble in calculating NO. 16 parameter in the UMAT for sand hypoplasticity by Dr. Masin, any help will be really appreciated especially with an example.
Best Regards,
Aysar
Calibration the UMAT sand hypoplastic parameters
Related Articles
-
Soft soil model vs Soft soil creep model
Balaji Bandaru||Constitutive Modelling|1 |
Views 2,990
Soft soil and soft soil creep model both include time while performing the analysis. What is the difference between both of them. -
How to implement this Hypoplastic Interface Model into ABAQUS combined with the existing hypoplastic model subroutine
Geyang Song||Constitutive Modelling|8 |
Views 2,761
Hello: I’m a post-doc at the University of Nottingham, and I’m using the hypoplastic model to simulate the centrifuge tests we did. The research area is related to soil-pile interaction. […] -
stress order in hypo umat seems to be incorrect
Ran Tu||Constitutive Modelling|3 |
Views 396
Dear forumers: Thanks to hypoplasticity sand UMAT provided by Prof. Masin — https://soilmodels.com/download/plaxis-umat-hypoplas-zip/. But during studying above sand UMAT, I found that the stress order may be incorrect. Because stress […] -
Effects of water content in sand in hypoplastic strength parameters
Abdiel Ramon Leon Bal||Constitutive Modelling|0 |
Views 2,192
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 […] -
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 […] -
New features in Excalibre
David Mašín||Constitutive Modelling|0 |
Views 3,109
Hi all, We are happy to announce that the Excalibre team received support from the research grant GACR 22-12178S to further develop the calibration software, which is freely available at […] -
Automatic calibration software ExCalibre has been launched
David Mašín||Constitutive Modelling|0 |
Views 2,739
On behalf of the team of developers I am happy to announce that, after more than four years of development and testing, ExCalibre has just been launched. ExCalibre is a […] -
Modelling TX monotonic compressive test with ABAQUS and SANISAND – not working
Riccardo Zabatta||Constitutive Modelling|8 |
Views 2,800
I am trying to reproduce a TX monotonic, compressive test on a sand by using a 1-element, axisymmetric ABAQUS FE model, assigned to a SANISAND material. For this purpose, I […]
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
Hi, this is not a parameter, but state variable, which is measured and not calibrated (volume of voids over volume of solid).
Hi,
Thanks for your reply, this void ratio is at the initial state?
Yes please