Learning Forum

[i.tamunodienye2]

Hi All,

I didn't find S-N curve among the properties of structural steel.

I didn't also find it among the toolbox inorder to add to the structural steel properties.

Please how can i go around this.

Thanks

[peteroznewman]

What version of ANSYS are you using?

[i.tamunodienye2]

ANSYS 2020R2

[peteroznewman]

If you are in an analysis system that can't use S-N data, such as Modal, and you have the Filter Engineering Data button set to On, you will not see the S-N data in Structural Steel or in the Toolbox.

Once you set Filter Engineering Data button to Off, you can see the S-N data in Structural Steel and the model in the Toolbox.

[i.tamunodienye2]

I found it but it does not stay permanent in the material properties.

It disappears if i click the "filter engineering data" again.

[peteroznewman]

It's a toggle button. Click once it's On, click again it's Off, click again it's On, click again it's Off, etc.

[i.tamunodienye2]

I clicked again to turn it on but the S-N curve is gone.

[i.tamunodienye2]

Also, the initial plot is not also displaying in the graph area upon inserting "fatigue tool".

[peteroznewman]

If you want to see the S-N model in the Toolbox and the data in Structural Steel, leave the filter Off.  Why did you click it again to turn it On?  Don't do that.

[peteroznewman]

Solve the model and Evaluate All Results, then look at the Graph.

[i.tamunodienye2]

Ok thanks i will do.

I have also left the filter off.

[peteroznewman]

The Engineering Data Filter setting has no effect on what you can do inside Mechanical, it only affects the display when looking at Engineering Data.