Dear all,
I’m using the UMAT file in which the hypoplastic model for thermal cycles is implemented.
In the Abaqus input file I have added the two lines necessary to define the 28 constants and the 17 state variables of the User Material.
Then, after a geostatic step, I have added a consolidation step in which the ground surface is cooled down.
The consolidation step is supposed to last one day but the analysis stops after the first increment with no error messages.
As there are no error messages, it seems that the Time Period has the same size of the Initial Increment Size but this is not the case because the Time Period is set to one day.
Can anyone help me?
Thank you!
Hypoplastic model for thermal cycles (Abaqus)
Related Articles

hypoplasticity model with Abaqus umat on Brno clay
mahdie masoudiFinite Elements5 Views 446
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 […] 
SANISAND dll
Emilio BilottaFinite Elements2 Views 577
Hi there, I’ve used successfully used SANISAND .dll with Plaxis 2016, but after switching to 2017 and now 2018 the .dll seems not to work (the parameter fields appear without […] 
Hypoplastic model for thermal cycles in clay (Abaqus)
Sherif GomaaFinite Elements2 Views 2,040
Dear all, I’m using the UMAT file in which the hypoplastic model for thermal cycles is implemented. I have done some runs for an axisymmetrical model for a single energy […] 
HP clay subroutine in Plaxis
muhammad shakeelFinite Elements5 Views 578
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 […] 
How to model the settlement in soil due to water drawdown.
Guru PandaFinite Elements3 Views 795
Which software has the feature to model soil settlement due water drawdown? 
DIANA with monopile follows Blum theory saving 10 m of length
Ab van den bosFinite Elements0 Views 242
Where the client was forced to make all his horizontal loaded Dolphins (piles) 10 m longer we could trustworthy proof that this actually was not necessary saving millions of cost […] 
Seismic Liquifaction
MOHD SAQIBFinite Elements2 Views 434
Hello All, I am trying to simulate the seismic liquefaction in Abaqus. Can you please help me to model this. Best Regards’ Saqib 
EasyTochnog input file generator
Dennis RoddemanFinite Elements0 Views 375
Hi All, Tochnog Professional now has an EasyTochnog extension, see http://www.tochnogprofessional.nl/easy_tochnog/page.php. With simple input data like pile diameter, pile length, slope geometry, sheet pile data, etc. a complete Tochnog Professional […]
Who is Online
No one is online right now
Search SoilModels Website
Recent posts
 Vibration foundation behavior 16.10.2021
 Getting started with UMAT for Hypoplastic clay model in ABAQUS 15.10.2021
 consistent tangent stiffness calculation in hypoplasticity sand UMAT 7.10.2021
 stress order in hypo umat seems to be incorrect 6.10.2021
 ALERT doctoral school on constitutive modelling – hands on session triax input files 2.10.2021
 Initial Stiffness of CU test in Masin’s 2014 Model 29.9.2021
 CONSTUTUTIVE MODELLING 22.9.2021
 Compatibility of subroutines in ABQ2021 17.9.2021
 Hypoplasticity sand convergence issues 17.9.2021
 MATLAB Code for Bounding Surface Plasticity Model 17.9.2021
 Non convergence problem in abaqus using hpoeca Clay Hypoplasticity in slope model 16.9.2021
 UMAT file for POROELASTICITY 31.8.2021
Recent Comments
 Ran Tu on consistent tangent stiffness calculation in hypoplasticity sand UMAT
 Francisco Mendez on Calibration of the von Wolffersdorff model using Genetic Algorithms
 David Mašín on stress order in hypo umat seems to be incorrect
 Ran Tu on stress order in hypo umat seems to be incorrect
 David Mašín on stress order in hypo umat seems to be incorrect
 Gertraud Medicus on Animating Soil Models
 A S M RIYAD on Animating Soil Models
 Gertraud Medicus on Animating Soil Models
 A S M RIYAD on Animating Soil Models
 Shen Wang on Initial Stiffness of CU test in Masin’s 2014 Model
 Francisco Mendez on Download Package of Incremental Driver
 Gertraud Medicus on Animating Soil Models
 Alan Jaret Aparicio Ortube on Triax element test driver
 Riccardo Zabatta on How can I solve the error in Abaqus mentioned below?
 Erick Kencana on Compatibility of subroutines in ABQ2021
 Yang Xue on Non convergence problem in abaqus using hpoeca Clay Hypoplasticity in slope model
 Shen Wang on Non convergence problem in abaqus using hpoeca Clay Hypoplasticity in slope model
 Yang Xue on Non convergence problem in abaqus using hpoeca Clay Hypoplasticity in slope model
Dear Chiara,
Maybe you could post the definition of the parameter input and the state variables. But from my experience I would guess that the initialization of the parameter or state variables is the problem (Function check_parms_hcea) . Did you checked the ifort file for some error messages?
Best regards,
Hans Henning
Hello
subscribe to and seek assistance from the
ABAQUS mailing list
https://groups.yahoo.com/neo/groups/Abaqus/info
Search the archive of the list before posting in it.
The list does not accept attachments.
Or
http://www.engtips.com/threadminder.cfm?pid=799
or from the ResearchGate discussion forum.
For advice on mechanics in general, including modeling,
you can consult
http://imechanica.org/
If you need subroutines: as an introduction get the file
http://imechanica.org/files/Writing User Subroutines with ABAQUS.pdf
Simulia Learning Community
3ds.com/slc
Good luck
Frank