- Joined
- Dec 18, 2019
- Messages
- 6,525
Learned a little more about this. One can mesh multiple zones at a higher density if needed. Was able to mesh at a 50um max cell size in the high stress region. I can see why tight radius is so bad for high pressure vessels, the stresses go way up. Like 1.3GPa in a 0.4mm radius, for a vessel pressurized to 75 MPa. UTS for 2024T3 is about 487 MPa, give or take. I could reduce the cell size further to see if the stress is convergent, but may run out of memory in my computer, it's getting close to the edge.