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How to create geometry in FEMAP based in Deformed Shape from SolidEdge ST SIMULATION

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The process is a little "laborious", but the result is impressing. Also it demonstrates how to take advanced of the transition from ST SIMULATION to powerful FEMAP:


  1. In SOLID EDGE ST5/ST6 click in your simulation study name and select "Save FEMAP Model File" and you will get your SIMULATION FEA model saved in FEMAP format *.modfem, both geometry, mesh, materials, element properties, loads & BCs, and RESULTS as well!!.
  2. Next open FEMAP, load the *.modfem model, and plot displacements results using scale 1:1 (actual deformation).
  3. Nest step is to update nodal coordinates with the deformed shape results: this is possible in FEMAP using "CUSTOM TOOLS > POSTPROCESSING > NODES MOVE BY DEFORM WITH OPTIONS", use scale 1:1. Now your FE model mesh is updated with deformed shape.
  4. The next step is to generate geometry based in Mesh. In FEMAP export the deformed FE TET mesh as STEREOLITOGRAPHICS file using "FILE > EXPORT > GEOMETRY > StereoLithography", then you will have a *.stl file with the OUTSIDE SKIN of the part or assembly (this step is mandatory because your mesh comes from SIMULATION, then I understand that is based in TETRAHEDRAL 3-D solid elements. If the FE model is based in 2-D Shell elements, then not need to export to STL, move directly to next step 6).

    Stereolithograpfy Export

  5. Simply open a new session of FEMAP and import the *.STL file using command "FILE > IMPORT > GEOMETRY > StereoLithography". In addition to just translating the triangular facets, however, FEMAP will automatically merge all coincident nodes and split any fac­ets that are necessary to eliminate free edges in the mesh. The options on this dialog box control merging, definition of short edges, as well as closing of gaps. This will results in a valid finite element mesh, although typically with very bad aspect ratio elements.


  6. And finally in FEMAP use command "GEOMETRY > SURFACE > FROM MESH" that creates automatically surface geometry based in 2-D SHELL mesh. This command has been improved a lot in new version of FEMAP V11.1, adding some "intelligence" like automatic detection of rules surfaces.

Hope it helps!.
Best regards,

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

How to run a Transient Simulation from a Nonlinear analysis




Is there any way to run a Transient Simulation from the Nonlinear results in the same file using the analysis manager?


If not, how do I easily import the deformed beam element curve from my Nonlinear analysis to a new file?


Thank you