lammps/examples/body/in.cubes

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# 3d rounded cubes
variable r index 3
variable steps index 10000
units lj
dimension 3
atom_style body rounded/polyhedron 1 10
read_data data.cubes
replicate $r $r $r
velocity all create 1.2 187287 dist gaussian mom yes rot yes
variable cut_inner equal 0.5
variable k_n equal 100
variable k_na equal 1
variable c_n equal 20
variable c_t equal 5
variable mu equal 0
variable A_ua equal 1
pair_style body/rounded/polyhedron ${c_n} ${c_t} ${mu} ${A_ua} ${cut_inner}
pair_coeff * * ${k_n} ${k_na}
comm_modify vel yes
neighbor 0.5 bin
neigh_modify every 1 delay 0 check yes
timestep 0.001
#fix 1 all nve/body
fix 1 all nvt/body temp 1.2 1.2 0.1
#fix 1 all npt/body temp 1.2 1.2 0.1 iso 0.002 0.02 1.0
compute p2 all pressure 1_temp
#compute 1 all body/local id 1 2 3
#dump 1 all local 1000 dump.* index c_1[1] c_1[2] c_1[3] c_1[4]
#dump 2 all image 1000 image.*.jpg type type &
# zoom 1.5 adiam 1.5 body type 0 0 view 60 15
#dump_modify 2 pad 6
thermo_style custom step ke pe etotal c_p2 c_1_temp
thermo 1000
run ${steps}