Suppress the odb output

[hmaddy]

Hi all,

I am running an analysis for 100 cycles and all I need is the stress strain output at the midcross section. So I gave ELPRINT command for that particular section.

But please let me know How do I suppress the large odb output I am getting? I ran for 10 cycles and my .odb file was almost 2 GB and same with .STT file. I even have the frequency=0 in the output keyword for the rest. Still its not suppressing. Is there any other way to do it..???

This was the format I gave,

*output, field, frequency=0
*element output, elset=___
S,E

etc.... Is there anything wrong?


Thank you in advance,

Maddy.

 

[workharder]

I think it should be "*Output, field, variable=PRESELECT, number intervals=1"

 

[hmaddy]

Hi workharder,

thanx for ur reply but still I am getting this huge output .odb file. I tried to supress the output in many ways in the input file.

I heard that I can give some command in abaqus command when I am calling the job. Does anyone has an idea about it,

Thank u in advance,
Maddy

 

[RGX124]

Hi,

Did you write FREQUENCY=0 for the *EL PRINT keyword?

Good luck

Regis

 

[mrgoldthorpe]

hmaddy,

Say you only wanted to view strains, stresses and nodal displacements as field output at the end of each step; but you aren't interested in history output, you would use:

*OUTPUT, FIELD , VARIABLE = PRESELECT, FREQUENCY=999
*ELEMENT OUTPUT
E, S
*NODE OUTPUT
U,
*OUTPUT, HISTORY, VARIABLE = PRESELECT, FREQUENCY= 0

For a minimal odb file set the the '999' to 0'. Of course, you won't be able to view any output in Viewer in that case.

MRG

 

[hmaddy]

Thank you very much mrgoldthorpe and Regis.

Really very informative stuff mrgoldthorpe.I could suppress the .odb file as you said. And Regis, the output command which calls for ELPRINT should have frequency 0. If frequeny in ELPRINT command is also set to 0 I will have nothing in my data file.

Workharder, I think 'number intervals' didnot work out before cause that is for only explicit analysis. Same syntax, but instead of number intervals i have frequency=0 and then it suppressed. Anyway thanks again to all,

Hmaddy.

 

[workharder]

There is another way which can be used to solve the problem. You can use *Restart to start a new analysis on the basis of last odb file. It is feasible since it is somewhat stupid.

I only ever used ABAQUS/Explict, so i am not familiar with the "output frequency". anyway, it's possible to decrease the output frames in ABAQUS/Explict

 

[xydrex]

I have also had the situation where I my .stt file was unnecessarily huge when using ABQ/Std. One function of .stt file is to contain the information if you do want to restart the analysis at some point during a previous simulation & do something else with it, which I dont think you wish to do. Therefore to supress .stt file:
*Restart, write, frequency=999999.