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Connecting Nodes of Two Components

Hi All,

I am trying to model deformation behavior of a two phase material(polymeric foam with the voids filled with 2nd phase material),by running an Optistruct module.

I have the orphan meshes of the foam and the voids (with TET4 or C3D4 elements) and would like to connect the nodes to ensure physical continuity in the model during deformation.

The Auto Contact module doesn't solve my problem, since the geometry is full of complex contours.

Any suggestions or ideas on how to go about?

Thanks,
Arun

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Altair Forum User

Hi Arun,

Since the node numbers at the edges may not be same, can you try to have freeze contact between two?

Do you see any error when you try with auto contact?

ARUNS_21340

Hi Prakash,

Apologies for my delayed response. I was on travel.

1) Auto Contact works, but the only issue was it wasn't able to detect the entire contour as a contact pair. Rather it was computing the pairwise element pairs.

2) I went with defining sets based on selecting property of each material and created a group with a master and slave pair with Freeze contact. This worked for me.

Thanks for your inputs.

Regards,

Arun

Altair Forum User

Hi Arun,

Did you try changing reverse angle in auto contacts?

From help:

This is a maximum value that you specify. If the angle between the normals of two elements, or element faces within the proximity distance, exceeds the specified value, the elements are excluded from the contact. The default value is 15 deg.