How to deactivate contact between load steps

Question

Hello,

I am doing a thermal analysis, and I would like to deactivate a contact between load steps. How can I do that?

Thanks,

Natalia Reynoso

Nagarjun Sura · Answer

Create two element sets one with  with contact nodes and other without contact nodes .

Its like not applying globally.

For creating two elements sets use local coordinate system.

Ben Buchanan · Answer

Unfortunately I can't think of another good way to do this.

Natalia Reynoso · Answer

Hi Ben,

Thanks for your reply. I also thought that MODCHG card would help me, but unfortunately MODCHG is not supported for a non-linear transient heat transfer subcase nor for transient heat transfer. Do you have any other idea?

Thank you very much.