Page 136 - Using ANSYS for Finite Element Analysis A Tutorial for Engineers

stAtIc AnAlysIs usIng AreA elements • 123
Fill in the window as shown in the preceding figure. This will create
a rectangle where the bottom-left corner has the coordinates 0,0,0 and the
top-right corner has the coordinates 200,100,0. (Alternatively, the com-
mand line code for the preceding command is BLC4,0,0,200,100.) Create
the circle:
Preprocessor > Modeling > Create > Areas > Circle > Solid Circle
Fill in the window as shown. This will create a circle where the center
has the coordinates 100,50,0 (the center of the rectangle) and the radius of
the circle is 20 mm. (Alternatively, the command line code for the preced-
ing command is CYL4,100,50,20.)
Subtraction:
Now we want to subtract the circle from the rectangle. Prior to this
operation, your image should resemble the following:

To perform the Boolean operation, from the Preprocessor menu,
select:
Modeling > Operate > Booleans > Subtract > Areas
At this point, a Subtract Areas window will pop up and the ANSYS
Input window will display the following message: [ASBA] Pick or enter
base areas from which to subtract (as shown in the following figure).