User subroutines 2

[OptiEng]

Hello all,

I am new to using subroutines and would really appreciate some help. I am trying to submit this step in the sequence of input files (with a user subroutine):

"abaqus job=treadwear_wear_straight user=treadwear oldjob=treadwear_roll"

I recieve an error message say:

"Abaqus error: The following file(s) could not be located:treadwear.for, treadwear.obj
Abaqus/Analysis exited with error(s)"

The file I have in the folder is the "treadwear.f" file.

Am I having this problem because I don't have a fortran compiler? If so, where can I get a suitable (freeware if possible) compiler?

Thanks in advance

 

[DanStro]

I don't think you can do this if you don't have a Fortran compiler, unless you have a c++ compiler and re-write the code.

The only compiler that is recommended by Simulia is the Intel compiler (which is not free). I think somewhere on this site there is someone talking about using a freeware one but I can't remember which it was or how to set it up. It might have been discussed at

http://www.polymerfem.com

though.

Assuming you get the compiler to work (intel or otherwise) you need to rename your subroutine "treadwear.for". For some reason I haven't been able to get Abaqus to recognize .f files but they run fine when you change extension to .for .

 

[loki3000]

abaqus 6.9 runs just fine with the .f suffix here.
you can get the free GCC compiler, it also has the fortran compiler embedded. there is also a version for windows, but i am not sure if that'll work with abaqus (in win).

 

[OptiEng]

Thanks for your input.

Loki3000 am I right in saying you use UNIX rather than Windows to run abaqus? and is a GCC comiler different to "IFORT" or something like "G95 Fortran"?

Abaqus produce some fantastic manuals, but I feel a little lost with the User Subroutines stuff especially as I don't have much experience with programming or Fortran.

Also, once I have the compiler installed, I am not sure how I get it to interface with Abaqus.

Thanks again.

 

[bornvirgo85]

Hi,
Linking Fortran to Abaqus solution is posted on the simulia technical support threads.

Good Luck