Ansys Learning Forum Forums Discuss Simulation General Mechanical Stress Singularity Appearing at Location of Anticipated Max Stress Reply To: Stress Singularity Appearing at Location of Anticipated Max Stress

mohan.urs
Ansys Employee

Hey,

Stress singularity in your 2nd simple case might be due to the over constraint casued by the fixed support.

I have compared two cases below, Do check it out.

First case is similar to yours, whereas in the second. I've used different supports. (displacement to restrain 2 axes motion and frictionless to provide support reaction in one axis). The stress distribution in 2nd is much more realistic.

Stress singularity near boundary condition means that there is a possible support over constraint there. 

If you need help on improving the setup, do provide a little more details on your setup.

I couldn't understand the first setup with the images you've shared. Can you please provide a little more insight on to why you chose compression only support and also the max location is also not visible correctly. Do share the location of max stress without the elements.

Thanks