Hello Jack,
Have you performed the mesh convergence test, to confirm the stress-singularities? Perform a parameter study of mesh element size as input paramater and stress as output parameter. If the stress rises as element size decreases, it is indeed a stress singularity. If the value converges, it is not a stress singularity. You can refer to this youtube video from our channel partner:
Dealing with Stress Singularities in ANSYS Mechanical - YouTube
We have our own tutorial on dealing with artificial stresses, this will give you more insights.
Understanding and Dealing with Artificially High Stresses — Lesson 3 - ANSYS Innovation Courses
Let us know if this doesn't help.
Regards,
Nanda.
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