How to use restart analysis in abaqus?

[rahulkochar]

Good morning everyone

1. I am running an analysis in ABAQUS, where I have a beam that I have modeled using 2D beam elements.

2. Now I apply displacements at the two ends and measure the reaction forces. These reaction forces are to be used by my Matlab program.

3. Next, I want to release the above imparted displacements on my ABAQUS beam and see if there are any permanent deformations or not.

4. Lastly, I want to again apply certain displacements at the beam ends ( to the same beam that existed after step 3)

This cycle is to go on.

I think I have to make use of restart analysis but my question is do I have to keep creating new models each time. The above cycle is repeated around 300000 times. That would be a lot of .inp files and models. Can't I have two models just interacting with each other continuously?

 

[Dave442]

you would need your original input file and then 300,000 additional input files for each individual restart. you would also generate 300,000 sets of output files from the restart analyses. This is easy to set up. See the following sections of the documentation:

"Getting Started with Abaqus Interactive Edition -> Multiple Step Analysis -> Restart analysis"
"Getting Started with Abaqus Keywords Edition -> Multiple Step Analysis -> Restart analysis"

However, what is the purpose of these analyses? why 300,000 different load cases?

 

[Mustaine3]

3. Next, I want to release the above imparted displacements on my ABAQUS beam and see if there are any permanent deformations or not.

If you are only interested in the yes/no answer, then you just have to check the plastic strains. If they are larger than zero, then you will have permanent deformations.