Abaqus Recovery Analysis

[db14e]

Hello,

I am running Abaqus explicit on a file. The problem is the file inadvertently keeps quitting at a certain point. It is usually around 24 hours. I need the file to run longer because I am measuring crack growth. Through reading the manual, I know in abaqus explicit if this happens the user can select Recover Explicit. The problem is when I do this it shows the job as running, however, when I click on the job name to see the results file it is still displaying at the last increment and not showing new increments. I really appreciate any help, I have been reading the manual and searching for solutions all day. I have tried to also run a restart analysis but that does not work as well. Thanks for your help.

Villanova University
Materials Science Researcher

 

[rstupplebeen]

Assuming there was no power outage or similar issue then you need to change something in the analysis to solve further.

To converge further you need to change some settings starting at a certain time step before the failure or possibly change similar settings as a full rerun.

I hope this helps.

Rob Stupplebeen

 

[db14e]

Rob,

Thanks for your reply. What do you mean by some settings, can you be more specific? Because I still can not get the analysis to continue to run. Thanks

Villanova Researcher

 

[rstupplebeen]

Please post your files or provide more details.

Rob Stupplebeen

 

[db14e]

Rob,

I have attached the current CAE file. Thanks for your help.


Villanova Researcher

 

[rstupplebeen]

Here is a log of what I did because I do not have the same CAE version as you. After you make these changes I can look at it again if needed. I hope this helps.

1. Changed from recover analysis to full run
2. You only have 1 material used. I assume that at the crack you wanted the "cohesive material"
3. since you want damage you need to have Nlgeom set to yes in your step definition.
4. Point loading is usually problematic. I would suggest constraining faces far enough away from the crack zone to not affect the results.
5. Because of symmetry you only need to model half of this. Either the top or bottom and constrain the cut face in the 2 direction.

Rob Stupplebeen