[lammps-users] How to add a torsion and a pressure in LAMMPS

Hi, all

i want to simulate a nanotube under torsion and external pressure. but i cannot find the command. so, is there a way to add a torsion and external pressure to the tube? (a force that tangent/normal to the cross-section)

Thanks in advance!


No for torsion, but you could write a fix that applied a twist
to a group of atoms on the end of the tube. For ext pressure,
you can use fix npt or fix deform.


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