Hi everyone, i have combined both Hypoplastic sand and clay umats in one umat ( to use for example in the case of multilayered soil medium made of clay and sand layers). My question is the following : is there any known issue when doing so ?
Sincerely,
Related Articles
-
-
Hypoplastic model for Granular soil
Hello everyone, Could you please anyone tell me that how I can define the hypoplastic constitutive model for granular soil in ABAQUS 6.13. With Regards, Naveen. -
Undrained Tests with Basic Clay Hypoplasticity
Hi Prof. David, I have obtained these results in that attached picture using Triax and got confused when seeing that an isotopically normally consolidated sample does not follow a trend […] -
Undrained Tests with Clay Hypoplasticity Intergranular
Hi all, I wanted to share these results to show that the use of the hypo clay model does in fact give more realistic undrained stress paths for clays on […] -
Non convergence problem in abaqus using hpoeca Clay Hypoplasticity in slope model
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 […] -
Question on the Matlab driver – model hypo Cam Clay
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. […] -
UMAT for strain-rate effects
Dear community, I’m interested in constitutive models that can handle strain-rate effects for HSR on sands for simulating free fall penetration. I would appreciate any help. Do you know any […] -
Supporting Organisations
Recent posts
-
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
-
Drucker-Prager Cap 29.5.2025
-
Abaqus RITSS with hypoplastic 9.4.2025
-
Fellin UMAT subroutine 2.4.2025
-
Hypoplasticity clay for triaxial compression in abaqus 26.3.2025
Hello, Anis! I wonder if you have complete the combined umat and whether the model can run?
I dont know how to make different layers to obtain the unique material property in only one umat, how did you do that?
Sincerely,