The plate with centre hole is axially experiencing concentrated loads at the centre. And there is stress concentration around the hole.

 

Axially Loaded Plate with hole CL Plate with hole DL 3-Point Bending 4-Point Bending Distributed Loading Cantilever- End Cantilever-Middle Cantilever-Distributed Overhanging Beam Beam With Support Beam-Three Loads Questions

Beam Cases Frame Cases