Step 2: Specify element type and constants
Specify Element Type
In the Preprocessor Menu, Select:
Element Type > Add/Edit/Delete > Add...
Pick Beam in the left field and 2D elastic 3 in the right field.
Click OK.
Close the Element Types dialog box and also the Element Type menu.
Specify the Constants
In the Preprocessor menu, Select*:*
...
This brings up the Element Type for Real Constants dialog box with a list of the element types defined in the previous step. Click OK to select the BEAM3 element. Enter the following values:
AREA = h*h
IZZ = I
HEIGHT = h
Save your work by clicking on the Save_DB button in the ANSYS Toolbar.