No Props are passed into VUMAT
Fortran library with the Abaqus user material subroutines UMAT/VUMAT
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I have tried to use the GTN VUMAT after many correction I have found that the Props are not passed into the VUMAT correctly. I will appreciate if you could please let me know how to solve the problem.
sorry, missed your post
I need more detailed info.
For starters, try version 4,
cd tests/gtn and try job-exp.
Let me know of any problems
Also, with any problems, please submit a ticket.
This helps keep track and not forget or ignore user feedback.
I'm a doctoral student from Huazhong University of Science and Technology in China. The paper 'Levenberg–Marquardt vs Powell’s dogleg method for Gurson–Tvergaard–Needleman plasticity model' was wonderful. I had tried my best to test the gtn code based on the website netlib.org/slatec/src/dnls1.f, but I found it always could not converge. when I used the 'powell-lm.f90' code and 'gtn-st-1fet-usr.inp' in abumpack4. the job aborted due to unrecovered error, the log showed 'too many function evaluations'. I will appreciate if you could please let me know how to solve the problem.
I'm a doctoral student from Huazhong University of Science and Technology in China. The paper 'Levenberg–Marquardt vs Powell’s dogleg method for Gurson–Tvergaard–Needleman plasticity model' was wonderful. I had tried my best to test the gtn code based on the website netlib.org/slatec/src/dnls1.f, but I found it always could not converge. when I used the 'powell-lm.f90' code and 'gtn-st-1fet-usr.inp' in abumpack4. the job aborted due to unrecovered error, the log showed 'too many function evaluations'. I will appreciate if you could please let me know how to solve the problem. My email: bayaocheng@outlook.com
Last edit: BaYao cheng 2024-03-13