5. In an FEA simulation, you did a mesh independence study. The results were compared with an experimental test and errors were plotted in Figure 7. a) Is the mesh with 8000 elements fine enough, and why? b) Is there another error source in the simulation and what type of errors could it be? ENGG20071 Industrial Design & Product Case Studies 60% 50% 40% 30% 20% 10% 0% Page 3 of 6 Errors (6 marks) 500 1000 2000 4000 8000 Figure 7 Errors plot against number of elements