forked from lijiext/lammps
64 lines
1.8 KiB
Plaintext
64 lines
1.8 KiB
Plaintext
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"LAMMPS WWW Site"_lws - "LAMMPS Documentation"_ld - "LAMMPS Commands"_lc :c
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:link(lws,http://lammps.sandia.gov)
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:link(ld,Manual.html)
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:link(lc,Commands_all.html)
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:line
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compute damage/atom command :h3
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[Syntax:]
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compute ID group-ID damage/atom :pre
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ID, group-ID are documented in "compute"_compute.html command
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damage/atom = style name of this compute command :ul
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[Examples:]
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compute 1 all damage/atom :pre
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[Description:]
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Define a computation that calculates the per-atom damage for each atom
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in a group. This is a quantity relevant for "Peridynamics
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models"_pair_peri.html. See "this document"_PDF/PDLammps_overview.pdf
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for an overview of LAMMPS commands for Peridynamics modeling.
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The "damage" of a Peridynamics particles is based on the bond breakage
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between the particle and its neighbors. If all the bonds are broken
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the particle is considered to be fully damaged.
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See the "PDLAMMPS user
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guide"_http://www.sandia.gov/~mlparks/papers/PDLAMMPS.pdf for a formal
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definition of "damage" and more details about Peridynamics as it is
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implemented in LAMMPS.
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This command can be used with all the Peridynamic pair styles.
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The damage value will be 0.0 for atoms not in the specified compute
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group.
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[Output info:]
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This compute calculates a per-atom vector, which can be accessed by
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any command that uses per-atom values from a compute as input. See
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the "Howto output"_Howto_output.html doc page for an overview of
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LAMMPS output options.
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The per-atom vector values are unitless numbers (damage) >= 0.0.
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[Restrictions:]
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This compute is part of the PERI package. It is only enabled if
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LAMMPS was built with that package. See the "Build
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package"_Build_package.html doc page for more info.
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[Related commands:]
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"compute dilatation/atom"_compute_dilatation_atom.html,
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"compute plasticity/atom"_compute_plasticity_atom.html
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[Default:] none
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