Learning Forum

[Marco Pedata]

Dear community,
I try to set up a full Ls-Dyna restart in workbench.
Furthermore, I want to activate/deactivate parts for this restart.
I tried the following keyword snippet to delete parts:
$   Keyword Snippet
$   Do not leave any unintentional empty lines in this editor
*DELETE_PART
60910, 60912, 21573, 21571, 21941
*END
Unfortunately that did not work.
I also tried construction stages:
*DEFINE_STAGED_CONSTRUCTION_PART
60910, 0, 1
*DEFINE_STAGED_CONSTRUCTION_PART
60912, 0, 1
*DEFINE_STAGED_CONSTRUCTION_PART
21573, 0, 1
*DEFINE_STAGED_CONSTRUCTION_PART
21571, 0, 1
$PARTID: 60910, 60912, 21573, 21571
*DEFINE_CONSTRUCTION_STAGES
0, 0.0, 0.5, 0.0, 0.0, 0.5
*DEFINE_CONSTRUCTION_STAGES
1, 0.5, 0.55, 0.0, 0.5, 0.55
*END
That did not work either.
However, I did not get any errors in the solver output.

I look very forward to your suggestions.

[Marco Pedata]

In addition to my question:
I also tried the method in the user guid which suggests to use data from the External Model from the toolbox.

However, this is not possible bcause my workflow looks like this:

Please note that I did not forget to set the Restart Type to Full Restart in the Analysis Settings.

[Ram Gopisetti]

Hi Marco, 

Currently, the addition of geometry into the LSDYNA system via the restart system is limited. 

Generally, full restart is discouraged and as an alternative, you can use the dynain method to read the dynain file ( with stress ) add the geometry via mesh node, and merge with the second system where stage 2 is modelled. 

Cheers, Ram