.. index:: compute smd/plastic/strain

compute smd/plastic/strain command
==================================

Syntax
""""""

.. parsed-literal::

   compute ID group-ID smd/plastic/strain

* ID, group-ID are documented in :doc:`compute <compute>` command
* smd/plastic/strain = style name of this compute command

Examples
""""""""

.. parsed-literal::

   compute 1 all smd/plastic/strain

Description
"""""""""""

Define a computation that outputs the equivalent plastic strain per
particle.  This command is only meaningful if a material model with
plasticity is defined.

See `this PDF guide <USER/smd/SMD_LAMMPS_userguide.pdf>`_ to use Smooth
Mach Dynamics in LAMMPS.

**Output Info:**

This compute calculates a per-particle vector, which can be accessed
by any command that uses per-particle values from a compute as input.
See :ref:`How-to discussions, section 6.15 <howto_15>` for
an overview of LAMMPS output options.

The per-particle values will be given dimensionless. See :doc:`units <units>`.

Restrictions
""""""""""""


This compute is part of the USER-SMD package.  It is only enabled if
LAMMPS was built with that package.  See the :ref:`Making LAMMPS <start_3>` section for more info. This compute
can only be used for particles which interact via the updated
Lagrangian or total Lagrangian SPH pair styles.

Related commands
""""""""""""""""

:doc:`smd/plastic/strain/rate <compute_smd_tlsph_strain>`,
:doc:`smd/tlsph/strain/rate <compute_smd_tlsph_strain_rate>`,
:doc:`smd/tlsph/strain <compute_smd_tlsph_strain>`

**Default:** none


.. _lws: http://lammps.sandia.gov
.. _ld: Manual.html
.. _lc: Section_commands.html#comm