CASE II Stress in a plate with a hole
For this case, the grid must match in the edges. The edges are defined as arcs. Some changes in the values are done to see how the mesh is altered.
The grid
Original generated grid
Initial values for undeformed semicircular shape
Values for a deformed semicircular shape
Original grid in green and modified in red
Results
Original sigma
Sigma for the deformed mesh
Original D magnitude
D magnitude for the deformed mesh