Now my goal is to check the shift of one part in the model, due to thermal Stress [thermal deformation]

I have mapped the temperature result into NX 12 Nastran solver Sol 101 linear static. And need to know the setup needed for the structural

Steps I have done:

1.I have loaded the temperature loads from the mapping solution.

2. I have set a contain-> fixed some things (not moving)

The question is

Do I need to define initial temperature for temhe set up?

If temperature result from the thermal analysis At certai. Time.. was distributed between 17C to 25C

Should I specify initial temperature 20 C, in Nastran sol 101?

If I did .. I am assuming NX will take 20C as To (i nitial )

The equation for each node is as follows:

Delta(elongation)=a *Delta Temp* inital length

So delta Temp would be = (20-17,18,19,20.. etc)

Will that give me correct value?

If i did not specify an initial condition what will NX solver count for To?

Also, is there is some tips for this kind of simulation.

I am not familar with NX Nastan .. would really be happy if someone guided me