No stress results in part model with gaps and nonlinear static

[Kristina Sornikova]

Dear Experts, I build simple part model, 3D tet elements, constraints and one load, model has gaps, so I use nonlinear static in NX nastran. I have stresses checked to be output. When model finish running, FEMAP even asks if I want to import nonlinear stress and strain, I click yes, and then I see there no stress results, only displacement and force. But if I run same model switch to linear static with same gaps, I get stress results, why?

 

[karachun]

Post model here, there are 1000 possibilities to make something wrong.

 

[A_aerospace]

When Femap asks "OK to Read Nonlinear Stresses and Strains?", clik "NO".

 

[rb1957]

I'd set output option to "print and post-process", so I can read the f06 output file.

You're using TET10s ? (TET4s are crappy elements)

another day in paradise, or is paradise one day closer ?

 

[Kristina Sornikova]

Thanks all for feedback, why click "NO" if solution non linear?

rb1957, yes I only use TET10, agree TET4 are too stiff.

 

[A_aerospace]

"why click "NO" if solution non linear"
If you click “Yes” femap reads ONLY Nonlinear results.
If you click “No” femap reads All results (both Linear and Nonlinear)

 

[Kristina Sornikova]

Thanks all for the feedback...

 

[Dan Poon]

When you say Gaps in your model, are you talking about Gap elements or physical gaps?