mirror of https://github.com/lammps/lammps.git
80 lines
1.5 KiB
Plaintext
80 lines
1.5 KiB
Plaintext
# 3d metal shear simulation
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units metal
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boundary s s p
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atom_style atomic
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lattice fcc 3.52
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region box block 0 16.0 0 10.0 0 2.828427
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create_box 3 box
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lattice fcc 3.52 orient x 1 0 0 orient y 0 1 1 orient z 0 -1 1 &
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origin 0.5 0 0
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create_atoms 1 box
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pair_style meam
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pair_coeff * * library.meam Ni4 Ni.meam Ni4 Ni4 Ni4
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neighbor 0.3 bin
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neigh_modify delay 5
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region lower block INF INF INF 0.9 INF INF
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region upper block INF INF 6.1 INF INF INF
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group lower region lower
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group upper region upper
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group boundary union lower upper
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group mobile subtract all boundary
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set group lower type 2
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set group upper type 3
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# void
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#region void cylinder z 8 5 2.5 INF INF
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#delete_atoms region void
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# temp controllers
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compute new3d mobile temp
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compute new2d mobile temp/partial 0 1 1
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# equilibrate
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velocity mobile create 300.0 5812775 temp new3d
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fix 1 all nve
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fix 2 boundary setforce 0.0 0.0 0.0
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fix 3 mobile temp/rescale 10 300.0 300.0 10.0 1.0
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fix_modify 3 temp new3d
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thermo 25
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thermo_modify temp new3d
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timestep 0.001
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run 100
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# shear
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velocity upper set 1.0 0 0
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velocity mobile ramp vx 0.0 1.0 y 1.4 8.6 sum yes
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unfix 3
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fix 3 mobile temp/rescale 10 300.0 300.0 10.0 1.0
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fix_modify 3 temp new2d
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#dump 1 all atom 500 dump.meam.shear
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#dump 2 all image 100 image.*.jpg type type &
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# axes yes 0.8 0.02 view 0 0 zoom 1.5 up 0 1 0 adiam 2.0
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#dump_modify 2 pad 4
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#dump 3 all movie 100 movie.mpg type type &
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# axes yes 0.8 0.02 view 0 0 zoom 1.5 up 0 1 0 adiam 2.0
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#dump_modify 3 pad 4
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thermo 100
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thermo_modify temp new2d
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reset_timestep 0
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run 3000
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