Hi all,
I was just trying to do some uniaxial tension test by using fix_deform and as a specimen sample I took single crystal Al. I use the available lamps script at https://icme.hpc.msstate.edu/mediawiki/index.php/Uniaxial_Tension
But, surprisingly I do not see any fracture even after the strain value of over 200%. The sample is stretched unusually at that high strain. I have seen a recent post about this type of behaviour but do not see any comments over it.
Could anybody please make some suggestion what I’m missing.
Thanks for your help in advance.
Best,
O
# Input file for uniaxial tensile loading of single crystal aluminum
# Mark Tschopp, November 2010
# ------------------------ 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
# ------------------------ FORCE FIELDS ------------------------------
pair_style eam/alloy
pair_coeff * * Al99.eam.alloy Al
# ------------------------- SETTINGS ---------------------------------
compute csym all centro/atom fcc
compute peratom all pe/atom