How can I write output from my subroutine (umat) to a text file? 1

[Elli H.]

Hello dear community,

I have a simulation in Abaqus/Standard using an UMAT. In this UMAT there are a few SDVs. I would like to write the solution of one SDV in a separate txt-file.
I tried a few versions (like it is also done by other authors) but in my case the txt file stays empty but the calculation time increases like he writes something into the txt file.. but obviously he does not because it stays empty.

I wrote:

open(unit=102,file='filename.txt')
write(102,*) SDV(1)
close(102)

I also tried to wirte "temp" instead of SDV(1) and added also status='old' because the filename.txt is already in the same folder in which the subroutine is saved.

This method works for others- but in my case it does not work. Does somebody know why or what could be changed?

Thanks

Regards,
elli

 

[NRP99]

When file is opened, Abaqus assumes that it is located in scratch directory created for simulation. So full pathname to an existing directory is needed like below.

open(unit=102,file='c:\filename.txt')
write(102,*) SDV(1)
close(102)

 

[Elli H.]

Thank you very much - you are right now it works-thank you

the SDV(1) is updated for every increment - do you also know what I can change so that he gives me the values as a tabular out? (without overwriting in every step?) I think I need a loop but for that I need the maximum i in the loop

Thank you

 

[NRP99]

thread799-313789 This might help.