Hello DAMASK and ABAQUS users,
I want to run dislocation density based crystal plasticity finite element analysis in ABAQUS using DAMASK CP codes. I am able to run the simulations on the small geometries (single crystal). When I change to poly crystal I am getting the error as "Analysis is being terminated from a user subroutine" but when I check the data I found the following error ┌─────────────────────────────────────────────────────────────────────┐ │ warning │ │ 35 │ ├─────────────────────────────────────────────────────────────────────┤ │ could not get $DAMASK_NUM_THREADS │ │ BEGIN: :END │ │ │ └─────────────────────────────────────────────────────────────────────┘
Has anyone come across the above error?Any suggestions to resolve this error?
Thanks.
Dear Ravi Kiran Bollineni,
First of all, you need to know the language of both coding platforms (UMAT and DMASK), and they must be the same or at least know how to convert them to another.
Secondly, according to your error “Analysis is being terminated from a user subroutine,” I think you can use more information about the UMAT subroutine. So, refer to the links below. You might find them helpful:
https://caeassistant.com/blog/start-writing-your-1st-umat-in-abaqus-foundation/
https://caeassistant.com/blog/start-writing-your-1st-umat-for-abaqus-construction/
Also, check this link:
https://caeassistant.com/product/umat-subroutine-vumat-subroutine/
it may help you a lot.
Best wishes.
Please add more details. Is this error occurs during the reading of reading material.yaml file? If possible please add some before and after the error from terminal.
Dear Martin Veidt,
Thanks for your reply. I have experience in using and writing the UMAT for ABAQUS. I am using DAMASK 2.03 version material subroutines (Fortran files) to run with ABAQUS. I will look into the links you shared.
Thank you
Dear Mirtunjay Kumar,
Thanks for your reply.
No, this error occurred after material subroutines compilation and input file compilation is done (below I attached the massages I received before the error). I believe there is no error regarding my material constants because I am running with the same parameters successfully on the geometry considering single grain. I am facing this error only when I switch to geometry with 150 grains.
Messages before the error:
Begin Compiling Abaqus/Standard User Subroutines
Fri 29 Apr 2022 04:25:50 PM EDT
End Compiling Abaqus/Standard User Subroutines
Begin Linking Abaqus/Standard User Subroutines
GNU ld version 2.25.1-32.base.el7_4.2
End Linking Abaqus/Standard User Subroutines
Fri 29 Apr 2022 04:29:32 PM EDT
Begin Analysis Input File Processor
Fri 29 Apr 2022 04:29:32 PM EDT
Run pre
Fri 29 Apr 2022 04:29:34 PM EDT
End Analysis Input File Processor
Begin Abaqus/Standard Analysis
Fri 29 Apr 2022 04:29:34 PM EDT
Run standard
Fri 29 Apr 2022 04:29:44 PM EDT
Abaqus Error: The executable standard
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