Splitting surfaces

Make 2D meshes on splitted interface

For 1st solid, create 3D mesh by drag

For 1st solid, use 3D => drag => drag elems

The mesh of 1st solid

For 2nd solid, apply the same method, but for both « 2D_1 » & « 2D_2 »

The 2nd mesh

And finally the assembly with coincident mesh on contact interface:

HM model: peca_hexa_hm