mesh refinment study
I would like to perform a sensitivity analysis on the mesh in order to find the best mesh element size to get accurate results.
I know I have to start from a certain element size and reduce it by a factor of 1.3 or 1.5 and check for the output. But I have some questions and I would appreciate if you could clear my doubts.
1. Is it correct if I keep the same general element size and refine the size of elements in a region of interest (body sizing)?
2. Can I look at the von Mises stress output?
3. The plot to study the mesh refinement should include all bodies or only the output related to the region of interest bodies?
4. How can I understand when to stop to refine the element size?