Weld Suppression?

Forum|Forum|10 years ago
July 8, 2016
7 replies
3508 views

I'm having some difficulty with Creo Simulation 2.0 using perimeter welds. For model that I have created a perimeter weld feature, every time I start the simulation the weld that I have created and the contact interface that I have also created are suppressed.

Is there a way to make the application accept this joining condition?

Is there a proper way to make the perimeter weld work?

Should I not use the contact interface and the weld feature together?

I would greatly appreciate any help with my issue and/or any tips.

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General

Best answer by 346gnu

John,

end, spot, perimeter and weld features are shells only.

Shells can be in 3-d assemblies.

Welds do not work with solids

You need another method.

Create a surface region on the side of your doubler that is in 'contact'

The surface region defines a border that will become bonded.

Parts that touch are assumed bonded.

Create a free/contact between the surface region and the mating part leaving the border bonded.

All will be solids

atb

Charles

3

346gnu

13-Aquamarine

John,

Can you give a bit more detail with respect to how the contact and the perimeter weld cooperate?

General comments -

Perimeter welds - doublers; usually

Only shells

Contacts don't work with shells (hence suppression)

Space between is 'air'

Doublers add an 'indicative stiffness'; stresses are not trustworthy.

Next bunch of questions would include:

Why do you need the perimeter weld?

What do you want to find out?

As Steven suggests, any pictures/models?

J

jtillery

Author

1-Visitor

Charles,

When I run the model with both the contact and weld unsuppressed, I get a warning that informs me that the they have become suppressed, though the results show something different.

Upon running a another design iteration, both have, in fact, been suppressed.

So you can not use the perimeter weld at all on 3D assemblies?

I need the perimeter weld to join the pieces together, in order to avoid the surfaces from being bonded, which would give me an unrealistic results.