Hi Dear
I use Lammps to calculate elastic constants of vinylester/titan nanocomposites. Because the matrix is polymeric, I’m forced to define the atom_style molecular.
I want to freeze the atoms of nanoparticle to prevent movement and interaction between them, But I meet following error:
“Fix freeze requires atom attribute torque”
Hi Dear
I use Lammps to calculate elastic constants of vinylester/titan
nanocomposites. Because the matrix is polymeric, I'm forced to define the
atom_style molecular.
I want to freeze the atoms of nanoparticle to prevent movement and
interaction between them, But I meet following error:
"Fix freeze requires atom attribute torque"
this topic has only been discussed on the mailing list over a hundred
times. please look closer and realize that fix freeze is particularly for
granular media simulations where you don't have point particles but
extended particles which are indeed subject to torque.
to *immobilize* atoms, you either can simply not include them in time
integration or set their velocity and force to zero.
also, there is no need to post every question twice.
axel.