seperate parts in Autodesk Simulation Multiphysics 2013

[Anonymous]

Hi guys,

i have a Problem in Autodesk Simulation Multyphysics 2013. I started out with a CADModel which i imported into Multiphysics. But now i have only 3 parts which include different materials. Is it possible to seperate planes from one Part into a new one or can i somehow match different Materials in one Part? I managed to create a new Part but i cant reassign any of the existing planes to it. Is that possible somehow?

Thanks,

Master Mind

[AstroJohnPE]

Hi,

The answers are

• no, you cannot assign different material properties to different regions of one part, and
• yes, you can "split" a part into multiple parts so that you can assign a different material to each of the new parts. How that is done depends on the geometry (which I'm not sure what the "existing planes" are that you referred to).

Here are some ways to split the part:

1. Split the original CAD model.
2. With Sim Mech 2013, there is a program named Inventor Fusion that you can use to change the CAD model that is within Sim Mechanical. Use the "Tools > Edit > CAD with Fusion" command to transfer the model to Inventor Fusion, make whatever changes you want, and transfer the model back to Sim Mechanical. (Newer versions of Sim Mech may have a different program for adjusting the model -- I don't remember what it is named.)
3. In its simplest form, a Sim Mech model is just a bunch of lines that eventually gets turned into nodes and elements (with the "Analysis > Analysis > Check Model" command, which is also used when you run the simulation.) You can do whatever you want to do with those lines in order to create the model you want. (I like the option of drawing every line, one-by-one ) So in theory you can take the surface mesh of one part, select the lines ("Selection > Select > Lines"), and change the lines to new part numbers ("Draw > Modify > Attributes"). Depending on what the specifics of the model are, you may need to close the new parts with a manually created surface mesh in order to form a complete volume (that is, use combinations of drawing and stretching lines, and the "Mesh > Structured Mesh" commands). Once the new volumes have a surface mesh on all faces, you can generate the solid mesh for the new parts by right-clicking on the part in the browser and choosing "Create Solid Mesh".

[Anonymous]

Hi John,

thank you for the reply. Bu now i still have the same problem in Inventor Fusion. I have very komplex Parts and it is not easy at all to chose a plane were to seperate them. Any help from other articles is usually with very easy geometry and wont work for me. Let me explain a little more.

I have a High Voltage Fuse and need the Parts seperated. In the middle there is a ceramic body which looks like a long gear-wheel and consists of round about 300 lines. Around that there is a coiled wire which also consists of about 300 lines. They are touching each other just at the peak of the cog of the wheel. (sorry i cant sent pictures because of it beeing a corporate secret)

Now i want to seperate those because they are in just one part (along with more parts). In any Help that i found there was just one plane where i could cut the Parts.

Sorry for the confusing description but i'm electrical engineer and am now fighting with CAD designing which really is not my prefered profession 😉

So please make the answer easy. Thanks for the effort.