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Failed for full nonlinear analysis after FEMAP export the analysis input file from working model

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hhcc_im

Aerospace
May 18, 2024
1
Hi,

I am using FEMAP version 2306. I performed the "Large Deformation - Cantilever Beam" example provided by Simcenter FEMAP. I cannot get the same the full non-linear analysis results as given in the example document. (I can only get the linear result). I went to the example fold and copy the original FEMAP model file "CantileverLD.modfem"to my local fold and run the analysis and it worked successfully.

However, when I export a NASTRAN file form this working model to generate a NASTRAN input file; then read this *.nas file gain into a new blank FEMAP model; then run the analysis again, I can only get the linear results. NOT Full NONLINEAR RESULT.

I think there something happened during the export process. And this example is very sensitive to nonlinear parameters.

Does anyone know about this issue? I uploaded the working *.modfem file.

Thanks
 
 https://files.engineering.com/getfile.aspx?folder=7a30d22f-d7ba-4d26-8469-afd09aad08f7&file=CantileverLD.modfem
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Dear hhcc_im,
I ran your FEMAP model and the analysis runs correctly, why you say "I cannot get the same full non-lienar analysis rersults"??.
You need to play with "Actual Deformation = ON" and "Scale Deformation = 1" to see nonlinear displacements results at scale 1:1 (real scale deformed shape).
See the link of the picture:
nonlin-deformed-shape_zzuthc.png

Best regards,
Blas.

~~~~~~~~~~~~~~~~~~~~~~
Blas Molero Hidalgo
Ingeniero Industrial
Director

IBERISA
48004 BILBAO (SPAIN)
WEB: Blog de FEMAP & NX Nastran:
 
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