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Slicing Solid with a curves/Surface

Valued Contributor

Hi,

I have a rectangular solid that needs to be sliced in the middle via a octogonal shape. I have inserted an image to get a better feeling.

I have created perimeter of the octogonal shape/solid that I want in the bigger rectangular solid.

Basically, I want 2 separate solids, one octogonal in the middle & the rest of the rectangular surrounding the middle shape.

Is it possible in FEMAP to accomplish the above operation? I dunno how to create a regular surface consisting of more than 4 curves in Femap. I did create a boundary surface but I don't know how to slice the bigger solid using either a set of curves alone or using a surface/boundary surface.

Would appreciate some help...

Thx

3 REPLIES

Re: Slicing Solid with a curves/Surface

Solution Partner Phenom

Hello!,

1. First use "GEOMETRY > CURVE - FROM SURFACE > PROJECT" commant and select the rectangular surface to project ONTO, next select the octogonal curves which you want to project. FEMAP will automatically project the curves onto the selected surfaces. This command will automat­ically project normal to the surface.
2. Next use command "GEOMETRY > SOLID > EMBED FACE" to extrude the octogonal face into a new solid and embeds it into the rectangular solid that contained the face. Simply use the defaults, by pressing OK.
3. Now you have two solids: one the outer rectangular solid and the inner octogonal solid, OK?.

As you see no need to create any BOUNDARY SURFACE and next to CONVERT to Parasolid solid, simply projecting octogonal curves + embed face and you are done!.

Best regards,

Blas.

Blas Molero Hidalgo, Ingeniero Industrial, Director
IBERISA • 48004 BILBAO (SPAIN)
WEB: http://www.iberisa.com
Blog Femap-NX Nastran: http://iberisa.wordpress.com/

Re: Slicing Solid with a curves/Surface

Valued Contributor

Thanks Blas.

That totally worked.

A completely unrelated question to the above but I did not want to start a new thread.

Where do I set composite offset Z0 in Femap? In Patran, while defining PCOMP, I can set the offset. I guess the offset doesn't really matter for 3D elements eh?

A few questions to get a better understanding how Femap/Nastran models 3d laminates. To start with:

1. In the Element Property dialog box, where ply/stack needs to specified, if my 0deg plies are along Y direction and the thickness is along Z direction, then my entry would be YZ, correct?
2. How does Nastran know where my first ply in the stacking sequence lies? In 2D, the above depends on the element normal per my understanding. Can someone explain how it works in 3D?

I will try to go through Femap materials to get answers to the above as well.

Thx

Re: Slicing Solid with a curves/Surface

Solution Partner Phenom

Dear Nagaraj,

Please open a new post for the offset & composite issue, is better not to mix things, thanks!.

Best regards,

Blas.

Blas Molero Hidalgo, Ingeniero Industrial, Director
IBERISA • 48004 BILBAO (SPAIN)
WEB: http://www.iberisa.com
Blog Femap-NX Nastran: http://iberisa.wordpress.com/