Hi,
I am simulating rock cutting process in Abaqus. The simulation starts with a brick shaped rock (flat top surface) and one of the responses I am interested in is the removed volume of rock at the end of the cutting process. I should note that there is a damage model defined and the elements get deleted accordingly.
Using output variable STATUS does not work unfortunately, since some elements simply fly away without being deleted (when I checked the STATUS value for those flying elements, I can see they are set to 1). In other words, some rock particles simply get removed without being deleted.
I tried using a displacement criteria, essentially checking displacement of nodes and if they are above a threshold, I consider them as "removed". However, I was wondering if there would be a more elegant and robust way to do this. Is there for example another output variable in Abaqus, which would tell me element IDs for those elements which lost connectivity to the rest of the model.
Thank you very much in advance for your comments and replies.
Best regards,
Murat
why you not divide your model to step , and one of them will be the excavation , and by using the interactions , make a deactivated for this step .
Hello Murat Panayirci ,
I am interested in calculating the response of removed volume from the cutting simulation. May I know if you figured out if there is a way in ABAQUS filed outputs to calculate this? Thanks
Hi Dhanraj,
in the end, I could not find an easy solution. What I did was to identify the nodes with high displacement (above a threshold), since both the deleted elements and also the elements which fly away have disp, and then calculate the total volume of the elements associated with these nodes.
I think there should be an easier way to do this but I could not find it. The problem arises from the elements which don't fail but simply become detached and fly away. Otherwise it would be simple to just check the element status.
good luck,
Murat
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