I have a problem using the fix_deform command for triclinic simulation boxes.
I'd like to use the fix to apply a shear deformation in order to investigate
plastic deformation of metals. I get errors in my results since when I
perform a xz-fix_deform, the atoms in z direction are remapped (as a result
of the periodic boundary conditions) in a way that avoids plastic deformation
(nucleation of dislocations, slip, ...).
So I'd like to use fixed boundary conditions in the z-direction, which is not
possible for a xz-fix_deform (at least at the moment...) or the
xz-displace_box command. Why must this direction be periodic? Is there a
possibility to apply shear using these commands without facing these