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2d/3d Rigid bodies

Creator
Creator

Are there any way to make a 3d or 2d model a rigid body without elastic proprieties?

 

For example, in a structural simulation were a 3d model is in contact with a 2d surface and I’m not interested in tension / displacement results for the surface, just the for the 3d model, so it would be interesting if that 2d surface were rigid.

 

3 REPLIES

Re: 2d/3d Rigid bodies

Siemens Phenom Siemens Phenom
Siemens Phenom

In NX Nastran Advanced Nonlinear (SOL 601/701), a contact target region can be specified as "Rigid" to achieve the behavior you describe.

 

In other solution sequences, all grids on a target region could be constrained or coupled together via RBE2 to achieve a rigid surface.

Re: 2d/3d Rigid bodies

Creator
Creator

In case of a 3d model. Is it possible to define the model as rigid body?
Thanks

Re: 2d/3d Rigid bodies

Siemens Phenom Siemens Phenom
Siemens Phenom

You would need to shell mesh all of the surfaces of the body, then select all of those into the target region that you set to rigid.