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Pre-tension in a cable

Altair Forum User

Hello,

I am trying to model a beam supported by tension only cables. At the moment I use a CGAP element to model the cable but ideally I would like to add some pre-tension.

Does anyone know how to model pre-tension in tension only cable?

Thanks in advance.

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Rahul Rajan_21763

Are you using Optistruct solver for analysis?

Altair Forum User

Yes, I am using Optistruct.

Rahul Rajan_21763

Bolt pretension is possible in optistruct using 1d & 3d elements.But to simulate tension in Cable Rod element is also good.

Could you share snapshot of your model?

Altair Forum User

H Rahul,

Thanks for your reply.

The model is of a yacht mast.

Depending on load direction it is possible for some cables to go slack. Therefore, I am not sure that Rod elements are correct since they can take compression.

<?xml version="1.0" encoding="UTF-8"?>

Rahul Rajan_21763

would be nice if you give a try with Rod elements.