units           lj
dimension       3
boundary        f f f
atom_style      bond
special_bonds   lj 0.0 1.0 1.0 coul 0.0 1.0 1.0
newton          on off
comm_modify     vel yes cutoff 2.6
lattice         fcc 1.0
region          box block -25 15 -22 22 -22 22
create_box      1 box bond/types 2 extra/bond/per/atom 20 extra/special/per/atom 50

region          disk cylinder x 0.0 0.0 20.0 -0.5 0.5
create_atoms    1 region disk
group           plate region disk

region          ball sphere 8.0 0.0 0.0 6.0
create_atoms    1 region ball
group           projectile region ball

displace_atoms  all random 0.1 0.1 0.1 134598738

mass            1 1.0

neighbor        1.0 bin
pair_style      bpm/spring
pair_coeff      1 1 1.0 1.0 1.0

fix             1 all nve

create_bonds    many plate plate 1 0.0 1.5
create_bonds    many projectile projectile 2 0.0 1.5

neighbor        0.3 bin
special_bonds   lj 0.0 1.0 1.0 coul 1.0 1.0 1.0

bond_style      bpm/spring store/local brkbond 100 time id1 id2
bond_coeff      1 1.0 0.04 1.0
bond_coeff      2 1.0 0.20 1.0

velocity        projectile set -0.05 0.0 0.0
compute         nbond all nbond/atom
compute         tbond all reduce sum c_nbond

timestep        0.1
thermo_style    custom step ke pe pxx pyy pzz c_tbond
thermo          100
thermo_modify   lost ignore lost/bond ignore
#dump            1 all custom 100 atomDump id x y z c_nbond

dump            2 all local 100 brokenDump f_brkbond[1] f_brkbond[2] f_brkbond[3]
dump_modify     2 header no

run             7500