Applying Torque Load & Boundary Conditions

[zozomama]

Hi,

I would like to apply torsion to my model. It is a cubical model, 10 x 10 x 10 units. I have another smaller cube in the model, 5 x 5 x 5 units. The x-y origin of the smaller cube is aligned with the x-y origin of the larger cube. The z-planes of each cube are coincident. That is, they share one plane, and they are centered. These two have different materials.

I want to apply a 1 Force-Length torsion on the model. In the picture, I would like to set up a BC so that the orange part of the plane remains planar, but poisson expansion is free to occur.

How do I set up that particular boundary condition (I know how to do other BCs I need) and how do I apply torsion?

Thanks,
-z

 

[corus]

How is it applied in real life? Torsion is applied by two equal and opposite forces at some distance apart.

Tata

 

[zozomama]

I tried applying equal concentrated loads at equal and opposite locations but only the node where the load was applied was distorted, and the rest of the model unchanged.

 

[Nileo2005]

Torque is applied as a moment in the load manager of the load module of CAE. Put a reference point on the center of the face and use a tie constraint in the interactions module to tie the surface nodes to this reference point, then apply the moment to this reference point.