Nanda Veralla
Subscriber

 

Hi Orestis,

When the contact force gets concentrated to a vertex or edge, the force is localized, and as the mesh size reduces, the area associated with the nodes in contact decreases, causing the stress to increase. Try to add a fillet or chamfer near the contact to eliminate those stresses. Or you can also try the interface treatment option, it should be set at adjust to touch. Any gap between the two bodies will be “filled” by ANSYS (without modifying the physical geometry) and the two bodies will be modelled as touching. This will result in a more robust and realistic model.

Have a look at this Ansys Learning video on artificial stresses here

">Understanding and Dealing with Artificially High Stress Using Ansys Mechanical – YouTube

Also go through the channel for many more interesting videos here Ansys Learning – YouTube

Thanks and regards,

Nanda.