I am doing uniaxial compression test on a cubic metal sample at 0K.
To simulate the compression behavior, i specify desired pressure in x direction and zero pressure in the y and z directions by using the following box/relax commands.
fix 1 all box/relax x 10000 nreset 10
fix 2 all box/relax y 0 nreset 10
fix 3 all box/relax z 0 nreset 10
I got the desired pressures in all the directions at the end of the minimization. I want to make sure whether i am correctly using the fix commands to simulate compression behavior. Is it possible to specify different pressure values in the three directions in a single fix command
Thanks in advance