I did Part 1 for the homework and I got a higher von Mises stress than you did in your instructions. You have a value of about 1.9e6 and my results were 2.4e6. When comapring my model to the instructions, I noticed we differed on the mesh refinement. It appears in the screenshots that you have the following values:
- Maximum mesh edge length: 1000
- Minimal mesh edge length: 0.001
When in the text you state they should be:
- Maximum mesh edge length: 0.0003
- Minimal mesh edge length: 0.0001
When you look at your mesh, the area where it should have a finer mesh, it has a courser mesh.
Does that make sense or am I missing something?