Reply To: Use of share topology or unique geoemtry

[peteroznewman]

The geometry has a Stress Singularity which means the stress increases when the element size at the singularity is reduced. That is the effect you are seeing. A blend radius is needed at all sharp interior corners near the peak stress to eliminate that singularity. The blend will make it more difficult to slice the body and use Shared Topology.

See this video: https://www.youtube.com/watch?v=iTqPgcTurXc

 and this video https://www.youtube.com/watch?v=ZP9nh4GOkIc and this course:

/courses/index.php/courses/tips-and-tricks-for-structural-simulation-in-ansys-mechanical/lessons/assessing-stress-singularity/