Dear all,
I am trying to simulate crack under mode 1 fracture using fix move command. In order to understand how the fix move command does work, I made a simple model and applied move command to a defined group of atoms at the boundary (the input file is attached). I used fix nvt for updating the position and velocity of the rest of the material. However, I visualize that after relaxation, when the fix move is starting, only that defined group of atoms (specified for fix move) start to move. It seems that the position and the velocity of the neighbor atoms (which are not subjected to move command) are not getting updated through fix nvt.
I appreciate any comment and suggestions.
Thank you
Nousha
in.simple (3.07 KB)
Dear all,
I am trying to simulate crack under mode 1 fracture using fix move command.
In order to understand how the fix move command does work, I made a simple
model and applied move command to a defined group of atoms at the boundary
(the input file is attached). I used fix nvt for updating the position and
velocity of the rest of the material. However, I visualize that after
relaxation, when the fix move is starting, only that defined group of atoms
(specified for fix move) start to move. It seems that the position and the
velocity of the neighbor atoms (which are not subjected to move command) are
not getting updated through fix nvt.
what do you expect, if you rip such a system apart at a speed of 100 m/s?
axel.