Have you successfully solved a 2D plane strain model yet?  Do that for a simple cantilever beam, which is one rectangular surface in 2D. Once you have done that, stack three rectangles to make a sandwich construction cantilever beam and show that result. Do that with isotropic materials. Finally, see if you can assign an orthotropic materials to the center 2D body. I don't know if you can or not. You will have to read the ANSYS help or just try it and see.

Did you read my post on using orthoropic materials to simulate honeycomb core?