Dear Prof. Plimpton
I am going to simulate the Dynamic Response under harmonic excitation in metallic material. However, I have some questions needing your help:
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Is LAMMPS valid for such simulation?
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Is EAM potential suitable to describe the interatomic force in such problem?
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Can you recommend me some LAMMPS Commands to apply harmonic excitation?
Thanks.
Sincerely yours,
H. Wei
I think this was answered a couple weeks back,
but maybe not.
"dynamic response" is too fuzzy a question for
a good answer. But LAMMPS can run
an EAM model which is generally good for
fcc metals. If you run standard NVE dynamics
at a low temperature (well below melting) then
atoms will simply vibrate around their lattice
sites, which is effectively harmonic motion.
You can dump trajectories and do post analysis
for "dynamic response" I suppose.
Steve