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Error during 3D bolt pretensioning

Hi,

I get an error while defining 3D bolt pre-tensioning using the Pretension Manager. After selecting the elements and defining the boundary nodes, I get an error "The selected nodes did not define any faces". Any idea what could be the reason?

Thanks.

/Shivanand

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OptiStruct

v2020.1

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Rogerio Nakano_21179

there is this tutorial

OS-T: 1390 Pretensioned Bolt Analysis of an IC Engine Cylinder Head, Gasket and Engine Block System

Do you face similar problem when attempting to work on the tutorial steps?

Regards

Shiv_21125

Hi Rogerio,

I looked at the tutorial and followed the same procedure. But I haven't tried the tutorial as is. Maybe I could try that.

Thanks.

Adriano_Koga

Hi Rogerio,

I looked at the tutorial and followed the same procedure. But I haven't tried the tutorial as is. Maybe I could try that.

Thanks.

this error is probably related to the creation of the pretension cut, which is a sruface from a face of the bolt.

you need to select a layer of solid elements, and then define 3nodes from the same element to pick a face. Or just use the 'face' selection on creating the surface.