compute plasticity/atom command
compute ID group-ID plasticity/atom
- ID, group-ID are documented in compute command
- plasticity/atom = style name of this compute command
compute 1 all plasticity/atom
Define a computation that calculates the per-atom plasticity for each atom in a group. This is a quantity relevant for Peridynamics models. See this document for an overview of LAMMPS commands for Peridynamics modeling.
The plasticity for a Peridynamic particle is the so-called consistency parameter (lambda). For elastic deformation lambda = 0, otherwise lambda > 0 for plastic deformation. For details, see (Mitchell) and the PDF doc included in the LAMMPS distro in doc/PDF/PDLammps_EPS.pdf.
This command can be invoked for one of the Peridynamic pair styles: peri/eps.
The plasticity value will be 0.0 for atoms not in the specified compute group.
This compute calculates a per-atom vector, which can be accessed by any command that uses per-atom values from a compute as input. See Section_howto 15 for an overview of LAMMPS output options.
The per-atom vector values are unitless numbers (lambda) >= 0.0.
This compute is part of the PERI package. It is only enabled if LAMMPS was built with that package. See the Making LAMMPS section for more info.