To input the hole, make sure that the area button
is pressed (dark background) and click on the five corners of the hole. Note that the order of the nodes is important (you need to go around the hole, not cross it in diagonal), but the rotation order (clockwise or counterclockwise) does not matter, not the starting node. Now, deactivate the background image and activate the meshing with the two buttons seen previously. What you now see on screen should now look like Figure 6.
Figure 6: Finite Element mesh of the beam with the hole
is pressed (dark background) and click on the five corners of the hole. Note that the order of the nodes is important (you need to go around the hole, not cross it in diagonal), but the rotation order (clockwise or counterclockwise) does not matter, not the starting node. Now, deactivate the background image and activate the meshing with the two buttons seen previously. What you now see on screen should now look like Figure 6.