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Femap Submodeling

Dear @BlasMolero,


I try to apply a submodel approach as you youtube video


I replicate all step but I obtain this result:


DetailDetailSubmodelSubmodelinitial modelinitial modelwrong result stress/displacement distributionwrong result stress/displacement distribution

I see that the imposed displacement reducing by the  external lateral region and are minimum in the middle plane. Why obtain this results? where I'm wrong.


Thanks Blas


Best regards



Re: Femap Submodeling

Solution Partner Phenom Solution Partner Phenom
Solution Partner Phenom


Your global model has a too coarse mesh, refine a little and the local vonMises stress results will improve, sure!.

Another problem could be the nastran flavour you are using, is not NX NASTRAN then I don't know if the procedure would apply the same way as I have done in the video.

Best regards,

Blas Molero Hidalgo, Ingeniero Industrial, Director
Blog Femap-NX Nastran:

Re: Femap Submodeling

Dear Blas,


thank for your quickly response.

I'll try to reduce the mesh dimension of global model. I use Autodesk Nastran for the numerical resolution.

I think (and I hope) that don't make meaninful change with NX nastran.

You know something about this?


Thank again and good work





Re: Femap Submodeling

Dear @BlasMolero,


I try to reduce the mesh size of the global model, and I obtain this results:


Stress DetailStress Detail


The quality and the stress distribution are improved. 


Thanks again and good work.