Stress Discontinuities in Contact
Stress Discontinuities in Contact
(OP)
Dear all,
I have two spherical surfaces in contact under load (no slip), and I seem to get high stresses at nodal points. Is this purely down to the need for a finer mesh? or can anyone offer any other advice on this? I am using Abaqus with C3D8 elements. I have also attached an image.
Thanks
I have two spherical surfaces in contact under load (no slip), and I seem to get high stresses at nodal points. Is this purely down to the need for a finer mesh? or can anyone offer any other advice on this? I am using Abaqus with C3D8 elements. I have also attached an image.
Thanks





RE: Stress Discontinuities in Contact
It looks like almost point contact so refine the mesh, preferably biased towards the region of contact.
Tara
RE: Stress Discontinuities in Contact
RE: Stress Discontinuities in Contact
Tara
RE: Stress Discontinuities in Contact
RE: Stress Discontinuities in Contact
http://www.espcomposites.com/bolt_update.jpg
I seem to get results like you have unless the mesh is matched.
Brian
www.espcomposites.com
RE: Stress Discontinuities in Contact
RE: Stress Discontinuities in Contact
Here's a presentation that describes the contact options available in Ansys (other software packages use similar formulations):
http://w
Good luck.
RE: Stress Discontinuities in Contact
RE: Stress Discontinuities in Contact
Thanks
RE: Stress Discontinuities in Contact
Tara