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[Pascal Berube]

So I have this cantilever beam that is a corecell sandwich composite struture

And I want to apply a vertical force that change along the Z axis in a parabolic fashion like this (don't mind the supports), on the top surface

There's chockingly very little documentation on how I could achive something so trivial in ANSYS Mechanical. I'm willing to use APDL (or the command snippet) but have no idea how to use my ACP model (since it's composite) in the APDL. 

Can someone please help me with that? I'm loosing my mind on this...

[Nanda]

Hello Pascal,

You can apply a spatial varying load by either using Tabular or Function inputs in the details view. Please look at this link for more details. There are multiple forum discussions already on this topic, let me know if this doesn't help.

Spatial Varying Loads and Displacements (ansys.com)

Regards,

Nanda.

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[Pascal Berube]

You can apply spatial varying "pressure" not force? Which also have to be normal to the surface. I don't have the distribution for the pressure and the face on which I wish to apply the load isn't normal to any axis (or plane at all for that mather).

As for the link you shared, I cannot acces it. I have to complete a form and when I'm done it tells me that I have a student credential and to read a message on the link but the link cycle back to the same page, so that's a bummer

[Nanda]

Hello Pascal,

We could do this by creating a named selection, then insert (Right Mouse Button click on the new name selection and choose create nodal named selection) a node named selection, and that can be used by a nodal force that is a function say of distance. Not very easy, but it seems to be doable at least. Also, I came across some APDL commands when searched online, but I never used it. Perhaps someone expert in APDL can better answer this.

Here’s how you can access the Ansys Online Help from within the Ansys Student products:

1. Open Ansys Workbench (or any other Ansys product) and go to Help > Ansys Workbench Help. A browser window will open.
2. Copy the link to the Ansys Online Help from the post on the Ansys Learning Forum.
3. Paste the link into the address bar of the browser window opened in step 1, and you’ll be able to access the desired page.

Regards,

Nanda.

[Pascal Berube]

The nodal force on the nodal named selection did the trick but for for some reason I had to multiply every force by the length of the beam to get the expected results.

Thanks you very much for the help

[Erik Kostson]

closing