tensile test

hi

i want to do tensile test on cu nanoparticle
and plot stress-strain diagram in excel
is this true?
and how can i plot it?

tensile test

echo both
dimension 3
boundary s p p
units metal
atom_style atomic

##########create box#######
region copperbox block -80 80 -40 40 -40 40 units box
create_box 1 copperbox
lattice fcc 3.61
region copper block -60 60 -20 20 -20 20 units box
create_atoms 1 region copper
mass 1 63.546
thermo_modify lost ignore
region left block -60 -50 -20 20 -20 20 units box
group left region left
region right block 50 60 -20 20 -20 20 units box
group right region right
group middle subtract all left right
timestep 0.002

pair_style eam
pair_coeff * * cu_u3.eam
velocity all create 300 4928459 mom yes rot yes dist uniform
velocity left create 0 4928459 mom yes rot yes dist uniform
velocity right create 0 4928459 mom yes rot yes dist uniform
fix 1 all nvt temp 300 300 0.01
fix 2 left setforce 0 0 0
fix 3 right setforce 0 0 0
fix 4 all nve
thermo 100
run 100