Check for Overclosure in Explicit

[tanmoy.db]

Hello All,
I am simulation a seal to check for contact pressure. I was able to run the simulation in STANDARD without trouble, but now i want to run the simulation using EXPLICIT.
I am having a difficult time finding how to eliminate overclosure, using elplicit. I want to eliminate overclosure, so that i get a stress value or contact pressure.
Material 1 is an analytical rigid -> surface-1
Mat 2 is hyper-elastic-> surface-2
i am using surface to surface contact. but every time i run job. i get excessive distortion with out any stress.
I hope i am making sense.


Thanks.

[tanmoy.db]

OK, i see 20+ views, but no reply. I don't want to sound rude.
Kind of in a hurry to resolve this issue
Pls comment if the above question is making sense so that i can try to re post it better.
If it does. Is it possible to achieve that in Explicit?

[Jorgen]

That is odd. It is usually easier to get convergence in explicit. I would try to start the simulation without overclosure (by initially removing the contact, or by applying the load to remove contact, or by simulating the assemply, etc.).

-Jorgen

[tanmoy.db]

I am using an axisymmetric model. So i wont be able to translate the instance in the radial direction. Is there an "interference fit" option in Explicit.
I have tried doing it by,
I changed the dia of the shaft so that it is in contact without any overclosure. Next i gave a disp of 0.1 with an amplitude. such that at the end of the step-1 the final dia is inc. from 10 to 10.1 (i am not sure if this is the rite way).

Also, since i have simulated overclosure in Standard, how do i continue the simulation in Explicit after Step-1.

[Jorgen]

You can do a restart approach. That restart the implicit simulation in explicit. To do this you need to use the *import command.

-Jorgen