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, do I have to enter 29 parameters in ABAQUS? Do I have to use the subroutine sdvini? What should I do? Thanks for your help.
Tags: hypoclayRelated Articles
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Abaqus Hypoplasticity Primary Variable Is Not Available
Hello, I am using the UMAT code hypoplasticity provided by Prof. Masin — https://soilmodels.com/download/plaxis-umat-hypoplas-zip/. I am simulating a very small and very basic analysis in Abaqus. I made basic cubic […] -
Modelling Rate-dependent behaviour of clay [Urgent]
Using PLAXIS, how to model rate dependent behavior of clay. This is to show the viscous behavior of the soil. Thank you in advance -
Convergence issue of unload of clay consolidation in Abaqus
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 […] -
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. […] -
Effects of water content in sand in hypoplastic strength parameters
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 […] -
New features in Excalibre
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 […] -
Hardening soil Model UMAT
I have the hardening soil model in the UMAT format. However, when I run the code, it gives me this error as shown in the picture. I tried to make […] -
Hypoplastic sand-mr parameter calibration
Dear all, I have a question about Hypoplasticity for sand model, i am having trouble to understand about how to calibrate the mr parameter ? Since no formula is provided […]
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