Convergence issue with optistruct
Altair EmployeeHi All
I am running small model of study of assembly steel tube (modeled with shell elements) into the Plastic part (modeled with Tetra elements).
Its Quasi static Non Linear problem, I have prescribed displacement to steel tube (via rigid) and defined contact between (Node to shell) Steel and plastic parts (Shell as master,Plastic part as Slave).
My model is taking lot of time to solve and analysis is not completing.
I have used below contact cards
$$ CONTACT Data
$$
CONTACT 2 5 2 5 NORM2.0 NO
+ N2S
Attached is model i am trying to run.
Any help is much appreciated
Regards
Kash
Answers
-
Hi Kash,
Can you share the .out file?
0 -
0
-
Hi Prakash
attached is original model for which i sent *.out file, you can consider any model you want.
Apologies The first model i sent earlier (my first mail i sent today), it has some modifications.
Regards
Kash
0 -
Hi Kash,
Can you add EXPRTNL and CNTSTB cards to your model and check if this helps.
0 -
Hi Kash,
I am also facing a similar problem and the Non-linear solution is not converging after a lot of iterations.
Did you figure out a way to solve this?
Thank you.
Regards,
Bharat Pinapati
0 -
Hi Bharath,
Can you share the .out file?
0 -
Altair Forum User said:
Hi Bharath,
Can you share the .out file?
Hi Prakash,
I have attached the .out file.
The Iterations will keep on running and finally the solver will end with Convergence not achieved message.
Is Contact the issue here?
0 -
Hi Bharath,
is it possible to share the model file?
You can use secured file transfer link in my signature to share the file.
0