Learning Forum

[Marcos Garcia]

Hello all,

I'm running a static simulation with bolted connection using beams, from the contact section. When i solve the simulation, I have a so big stress in the edge of the hole, which is clearly a stress concentrator. Is there any way to improve and eliminate this stress concentrator or should I just ignore this value?.

Thanks in advance.

 

[SaiD]

Hello,

Are you tieing the vertex of the beam connection to the edge of the hole? A better way would be to create imprints of the bolt heads and tie the vertex to that 'area' instead of an 'edge'. You may find this lesson helpful: Bolt Modeling Connections as Beam Elements | Ansys Courses

[Marcos Garcia]

Hello,

You are right, I'm applying the beam connection on the edge of the hole. I will try to use the imprint command in SpaceClaim to generate a circular surface around the hole to use that surface to define the beam connection, in the same way that the video that u showed me.

I have a question about the imprint generation, I know how to do it in planar surfaces but I dont know hot to generate this imprint for curve surface like in the model that i have. Could you say me how to do the imprint in curve surfaces?

Thanks in advance.

[Marcos Garcia]

Hi again,

I have already done it using a coordinate system on the axis of the hole and creating a circle in it. After that, I used the imprint command and i got the circle around the hole in a curve surface.

Thanks for the help!

[SaiD]

Thanks for sharing your method! Hope others find it helpful.