Identical mesh in abaqus

Check this thread:

I didn't think you needed to do this (match mesh both sides of a contact surface) any more. sure you can, but I thought these days you could tell the code "these two surfaces are in contact, figure it out" ?

"Hoffen wir mal, dass alles gut geht !"
General Paulus, Nov 1942, outside Stalingrad after the launch of Operation Uranus.

We are talking about periodic boundary conditions for RVE models here, not about regular contact. In such cases, matching meshes can be crucial.

Anyway, I would try the Micromechanics plug-in.