Dear LAMMPS users,

How can one able to obtain contact area of the spherical indent so as to determine stress-strain relation from the load-displacement curve?

Thanks,

Karteek

Dear LAMMPS users,

How can one able to obtain contact area of the spherical indent so as to determine stress-strain relation from the load-displacement curve?

Thanks,

Karteek

Dear LAMMPS users,

How can one able to obtain contact area of the spherical indent so as to

determine stress-strain relation from the load-displacement curve?

first of all, please note, that you are asking for a property that is

not so well defined at the atomic scale.

what is the volume/radius of an individual atom? how do you define the

surface of the indenter?

a small change in the assumed effective radius can have a significant

impact on what you'd call contact area.

i can imagine different approaches. e.g. computing a cutting plane

from the density distribution of the (unindented) surface and looking

at the intersection with the indenter. or doing some kind of

tesselation of the indented area (there are various tools that can

compute approximations surfaces for atomic scale objects based on

probe radii).

axel.