[lammps-users] Orient Command

Hi,

I am trying to align the crystal orientation in the following manner. However, the visualization shows that both the crystals are getting oriented in the same manner as like in the first define case.

lattice diamond 5.43 orient x 1 1 0 orient y -1 1 0 orient z 0 0 1 origin 0.0 0.0 0.0

create_atoms 1 region workpiece

lattice diamond 3.567 orient x 1 0 0 orient y 0 1 0 orient z 0 0 1 origin 0.0 0.0 0.0

create_atoms 2 region tool

Is that something i am missing.

Regards,

Saurav

Hi,

I am trying to align the crystal orientation in the following manner.
However, the visualization shows that both the crystals are getting oriented
in the same manner as like in the first define case.

lattice diamond 5.43 orient x 1 1 0 orient y -1 1 0 orient z 0 0 1 origin
0.0 0.0 0.0

create_atoms 1 region workpiece

lattice diamond 3.567 orient x 1 0 0 orient y 0 1 0 orient z 0 0 1 origin
0.0 0.0 0.0

create_atoms 2 region tool

Is that something i am missing.

if i copy those two lines into an input,
they result in different lattice orientations.

there must be something wrong elsewhere.

axel.

D/Sir,

Thanks very much for your prompt reply. I will once again check the input file.

Have two more queries:

  1. for the attached file for diamond lattice, how can i specify the orient command in lammps for Dodec & the Cubic orientation.

  2. Is regarding unit of stress in metal units which i have earlier posted.

Regards,
Saurav Goel

Doc1.doc (57 KB)

1. for the attached file for diamond lattice, how can i specify the orient
command in lammps for Dodec & the Cubic orientation.

With a custom lattice option and the orient commands you should
be able to define any lattice you wish.

Steve