Deactivate elements for just a loadcase

Francesco Cataldi_20856

Hi, I'm trying to deactivate an RBE2 spider for just a loadcase, in an analysis with 5 loadsteps, is there a way to do this? Solver is Optistruct.

Thank you!

Rajashri_Saha

Hi Francesco,

You can activate and deactivate specific element by using MODCHG option.

But this works for Non-linear analysis only.

you can go through the below link for more detail.

MODCHG (altair.com)

Also there is an example tutorial which you can refer. I have attached the files here.

Thanks

Rajashri

 

3rings_modchg_lgdisp.fem

OS-E- 0700 Subcase Specific Model Change using 3-Rings.pdf