bilinear stress strain behavior

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1

sir
then what should be the general cut-off for lj pair potential corresponding to a sigma, if no cut-off is specified??

2

That’s really a question for your model, not a LAMMPS Q.
The cutoff is an input to LAMMPS. For LJ systems, a cutoff
of 2.5 sigma is typical, but if you are reading a paper,
see what they used.

Steve