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Pretension / Bolt Problems

User: "jdfuentes7102"
jdfuentes7102
Altair Community Member

Hi, everyone!

I hope that you are doing well. I came here because I'm finishing my Mechanical Engineering degree and for my final proyect I have to analyze with FEM a Cubesat 1U. I've already used SimSolid, but now I want to replicate the results on Hypermesh.

I'm encountering a problem that I'm not being able to correct modelling the bolts for the structure. I've already tried with the specifics tools (Fastener), some videos (RBE3 + CBEAM) even I've tried to use the bolt 3D itself as a another component. The mayor problem is when I want to apply a pretension force, having this error:

"*** ERROR # 1309 *** Duplicate SPOINT ID 71593 - it is used on GRID card."

I've found somekind of workarounds but it wasn't helpful at all. Without pretension, the solver gives me a result but it's not realistic because I think it's not transmitting the forces.

Any kind of help would be great.

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