About some questions regarding Abaqus subroutines?

The issues you're experiencing when running Abaqus user material subroutines (UMAT) on a new system with updated software components are not uncommon. They often stem from compatibility and configuration problems rather than errors in the UMAT code itself. Here are some steps and considerations that might help you troubleshoot and resolve these issues:

Steps to Troubleshoot and Resolve

Verify Software Compatibility:Ensure that Abaqus 2021 is fully compatible with Windows 11, Visual Studio 2022, and OneAPI 2022. Although these versions are relatively recent, there might be specific patches or updates required for full compatibility. Check the official Abaqus documentation or contact Dassault Systèmes support for any known compatibility issues or recommended configurations.

Environment Variables:Make sure that all necessary environment variables are correctly set up for the new setup. These include paths to the compilers, libraries, and other necessary tools provided by Visual Studio and OneAPI. Common environment variables to check include PATH, INCLUDE, LIB, and IFORT_COMPILER21.

Compiler and Linker Settings:Ensure that the compiler and linker settings in Visual Studio 2022 and OneAPI 2022 match those used in the working setup (Visual Studio 2019 and Parallel Studio XE 2020). Look for specific settings related to Fortran and C++ integration, as UMAT subroutines often involve mixed-language programming.

Abaqus Verification:Run the Abaqus verification tool to check if the installation and configuration are correct. Use the command abaqus verify in the command prompt to see if any issues are flagged.

Check Abaqus .env File:Review the Abaqus environment file (abaqus_v6.env). Ensure that it points to the correct compiler versions and libraries. Compare this file between the two systems (working and non-working) and update accordingly.

Recompile UMAT:Recompile your UMAT subroutine on the new system. Different compiler versions can sometimes require minor changes in the code or compiler directives. Make sure to clean up any old object files and libraries before recompiling.

Dependency Issues:Check for any missing dependencies or libraries that might be required by the UMAT subroutine. Use dependency walkers or similar tools to identify any missing DLLs or other files.

Log Files and Error Messages:Examine any log files, including abaqus.rpy, abaqus.log, and any other output files that might contain error messages or warnings. If .msg files are not being generated, it might indicate an issue early in the execution process. Look for any errors related to job submission or initialization.

Compatibility Settings:Sometimes running executables in compatibility mode can resolve issues. Try setting the compatibility mode of the Abaqus executable to Windows 10 or an earlier version that worked previously.

Additional Tips

Documentation and Community Support: Refer to the official Abaqus documentation and user forums. Often, other users might have encountered similar issues and found solutions.
Abaqus Support: If the issue persists, consider reaching out to Abaqus technical support. Provide them with detailed information about your setup and the issues you are encountering.

Example Environment Setup

Here’s an example of what your environment setup might look like for Visual Studio and Intel Fortran Compiler integration:

Environment Variables:

SET PATH=C:\Program Files (x86)\Intel\oneAPI\compiler\latest\windows\bin\intel64;%PATH%

SET PATH=C:\Program Files (x86)\Microsoft Visual Studio\2022\Professional\VC\Tools\MSVC\14.29.30133\bin\Hostx64\x64;%PATH%

SET INCLUDE=C:\Program Files (x86)\Microsoft Visual Studio\2022\Professional\VC\Tools\MSVC\14.29.30133\include;%INCLUDE%

SET LIB=C:\Program Files (x86)\Microsoft Visual Studio\2022\Professional\VC\Tools\MSVC\14.29.30133\lib\x64;%LIB%

SET IFORT_COMPILER21=C:\Program Files (x86)\Intel\oneAPI\compiler\2022.1.0

Abaqus .env File Example:

compile_fortran = 'ifort /c /Od /iface:cref /recursive /Qauto /Qsave /Qprec-div /Qprec-sqrt /Qfp-stack-check /Qcheck:bounds'

link_sl = 'ifort /exe'

Reabet Gion

Hi,

This issue seems to be related to Abaqus not successfully connecting with the Fortran compiler, indicating that Abaqus is unable to correctly compile the UMAT, leading to the problem. You can try running the 'Abaqus verification' to check whether 'Abaqus/Standard' and the user subroutines can be successfully verified. In a properly configured environment, the expected outcome should be as

-----------------------------------------------------------------------------

Abaqus/Standard with user subroutines

...PASS

Continuing...

Good luck!

Simulation of metal drawing by Abaqus with UMAT?

What papers have conducted experimental studies on metal forming processes and attached images of the deformed materials in the papers?

Are there reviews or articles containing anisotropic elastic constants of single crystal for superalloys?

I have get this error when i calculated the geometrical optimization for prco3, it takes 12 hours until gives this message in the outputfile?

How to define an anisotropic material with asymmetric elastic compliance/stiffness matrix in ANSYS APDL?

How to get moment output in Abaqus Standart?

Request Python code?

How to fix errors in my heat transfer steel structure with reinforced concrete slab model Abaqus?

Is it possible to plot the atom-projected band structure using GPAW?

Why does everyone use vs code?

Is an invitation to join the editorial board of Clinical Cardiology Updates a scam?

Please explain how the plastic input value should be considered from the true stress-strain curve for the bilinear elastoplastic material model ?

How can i do multivariate Time Series forecast using MLP, ANFIS and LSTM?