Cantilever bending CNTs

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1

Hello Lammps users,

I am posting this again.

My aim is to perform a cantilever bending test with CNTs. I would like to fix one end and apply force to the other end. I work with ppp boundary condition and do not define a simulation box, but use read_data command.

I have questions about:

i. fixing the CNT
ii. applying force on the free end

I am looking for help and it would be nice if successors can provide me with input script.

Thank you.

2

Hello Lammps users,

I am posting this again.

My aim is to perform a cantilever bending test with CNTs. I would like to
fix one end and apply force to the other end. I work with ppp boundary
condition and do not define a simulation box, but use read_data command.

I have questions about:

i. fixing the CNT

Atoms will not move if no time integration fixes (nve, nvt, npt, , move,
etc) are applied.

ii. applying force on the free end

Have a look at: http://lammps.sandia.gov/doc/fix_addforce.html.

Ray