Hi to all!!
I am having problems solving one analysis with SOL 400 in Nastran.
My analysis have different STEP loads.
First step: only temperature 95°
Second step: temperature 95° + Pressure 1100 KPa
Third step: temperature 95° + Pressure 1400 KPa
When solving I can see in the .sts file that the two first steps are going ok, but when starts with the third step in the .f06 file I can see that something wrong is going on, it starts to iterate and launching the following information message:
*** USER INFORMATION MESSAGE 8135 (N3DSEP)
In contact analysis, the force factor (N3DFF2=0.280274) is less than 1.0
*** SYSTEM INFORMATION MESSAGE 8137 (NL3CON)
PENETRATION condition has been detected. Additional iterations will be performed.
It keeps for long iterating in the .f06 launching the same information message (just the N3DFF2 changes a little) and finally the problem doesn't converge. I have not clue what is going on, someone have any idea??
Thank you in advance
I am having problems solving one analysis with SOL 400 in Nastran.
My analysis have different STEP loads.
First step: only temperature 95°
Second step: temperature 95° + Pressure 1100 KPa
Third step: temperature 95° + Pressure 1400 KPa
When solving I can see in the .sts file that the two first steps are going ok, but when starts with the third step in the .f06 file I can see that something wrong is going on, it starts to iterate and launching the following information message:
*** USER INFORMATION MESSAGE 8135 (N3DSEP)
In contact analysis, the force factor (N3DFF2=0.280274) is less than 1.0
*** SYSTEM INFORMATION MESSAGE 8137 (NL3CON)
PENETRATION condition has been detected. Additional iterations will be performed.
It keeps for long iterating in the .f06 launching the same information message (just the N3DFF2 changes a little) and finally the problem doesn't converge. I have not clue what is going on, someone have any idea??
Thank you in advance
