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# ------------------------ INITIALIZATION ----------------------------
units                 metal
dimension        3
boundary        p        p        p
atom_style        atomic
# variable latparam equal 4.05

# ----------------------- ATOM DEFINITION ----------------------------
# lattice                fcc ${latparam}
# region                whole block 0 10 0 10 0 10
# create_box        1 whole
# lattice         fcc ${latparam} orient x 1 0 0 orient y 0 1 0 orient z 0 0 1
# create_atoms        1 region whole


read_data       fetwin.data

region   up block -INF INF -INF INF 80 INF
region   low block -INF INF -INF INF -INF 20
group    up  region up
group    low region low

# ------------------------ FORCE FIELDS ------------------------------
pair_style        eam/alloy
pair_coeff        * * Al99.eam.alloy Al

# ------------------------- SETTINGS ---------------------------------
compute csym all centro/atom fcc
compute peratom all pe/atom
compute stress  all stress/atom NULL

######################################

reset_timestep        0
timestep 0.001
velocity all create 300 12345 mom yes rot no
fix 1 all npt temp 300 300 1 iso 0 0 1 drag 1

# Set thermo output
thermo 10
thermo_style custom step lx ly lz press pxx pyy pzz pe temp

run 500
unfix 1

# Store final cell length for strain calculations
variable tmp equal "lx"
variable L0 equal ${tmp}
print "Initial Length, L0: ${L0}"




±¨´íµÄÄÚÈÝ£º£º
PS C:\Users\xxpc-office\Desktop\tensile-twin> lmp_mpi -in in.4txt
LAMMPS (11 Aug 2017)
OMP_NUM_THREADS environment is not set. Defaulting to 1 thread. (../comm.cpp:90)
  using 1 OpenMP thread(s) per MPI task
Reading data file ...
  orthogonal box = (0 0 0) to (100 100 100)
  1 by 1 by 1 MPI processor grid
  reading atoms ...
  84355 atoms
ERROR: Expected floating point parameter in input script or data file (../region_block.cpp:38)
Last command: region   up block -INF INF -INF INF 80 INF


dataÎļþ¿ªÍ·ÄÚÈÝ£º£º

84355  atoms
           1  atom types

      0.00000000     100.00000000  xlo xhi
      0.00000000     100.00000000  ylo yhi
      0.00000000     100.00000000  zlo zhi

Masses

           1   55.84500000    # Fe

Atoms # atomic

         1    1       25.11560200      83.72774500      76.47610300
         2    1       28.27335500      85.32570400      75.71484200
         3    1       22.03587500      80.44872200      74.03231600
         4    1       21.11270900      82.67894400      74.88441700
         5    1       17.95495500      81.08098500      75.64567900
         6    1       23.57573800      82.08823300      75.25421000
         7    1       24.27046200      84.27690300      74.12315500
         8    1       28.96807900      87.51437300      74.58378700
         9    1       30.58597000      87.47282000      72.60063100
        10    1       27.42821600      85.87486200      73.36189300
        11    1       25.81032600      85.91641400      75.34504900
        12    1       32.12583300      89.11233200      73.82252500
        13    1       32.82055700      91.30100100      72.69147000
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  • 2018-07-03 10:24:26, 762.16 K
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  • 2018-07-03 10:30:42, 1.38 K
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