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git-svn-id: svn://svn.icms.temple.edu/lammps-ro/trunk@1963 f3b2605a-c512-4ea7-a41b-209d697bcdaa

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sjplimp 2008-07-24 15:04:46 +00:00
parent 6aabbb6981
commit 0403478922
5 changed files with 104 additions and 36 deletions
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1
doc/compute.html
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@ -111,6 +111,7 @@ available in LAMMPS:
</P>
<UL><LI><A HREF = "compute_centro_atom.html">centro/atom</A> - centro-symmetry parameter for each atom
<LI><A HREF = "compute_coord_atom.html">coord/atom</A> - coordination number for each atom
<LI><A HREF = "compute_damage_atom.html">damage/atom</A> - Peridynamic damage for each atom
<LI><A HREF = "compute_displace_atom.html">displace/atom</A> - displacement of each atom
<LI><A HREF = "compute_erotate_asphere.html">erotate/asphere</A> - rotational energy of aspherical particles
<LI><A HREF = "compute_erotate_sphere.html">erotate/sphere</A> - rotational energy of spherical particles

2
doc/compute_damage_atom.html
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@ -9,7 +9,7 @@
<HR>
<H3>compute damage/peri command
<H3>compute damage/atom command
</H3>
<P><B>Syntax:</B>
</P>

2
doc/compute_damage_atom.txt
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@ -6,7 +6,7 @@
:line
compute damage/peri command :h3
compute damage/atom command :h3
[Syntax:]

70
doc/pair_peri_pmb.html
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@ -22,31 +22,58 @@ pair_coeff * * 1.6863e22 0.0015001 0.0005 0.25
</PRE>
<P><B>Description:</B>
</P>
<P>The <I>peri/pmb</I> style implements the peridynamic bond-based prototype
microelastic brittle (PMB) model. Please see the
<A HREF = "http://www.sandia.gov/~mlparks/papers/PDLAMMPS.pdf">PDLAMMPS</A> user guide for more
details.
<P>Style <I>peri/pmb</I> style implements the Peridynamic bond-based prototype
microelastic brittle (PMB) model, which can be used to model materials
at the mesoscopic or macroscopic scale. The implementation of
Peridynamics in LAMMPS is described in <A HREF = "#Parks">(Parks)</A>. Also see the
<A HREF = "http://www.sandia.gov/~mlparks/papers/PDLAMMPS.pdf">PDLAMMPS user
guide</A> for more
details about this particular potential.
</P>
<P>The syntax for the pair_coeff command is:
<P>The following coefficients must be defined for each pair of atom
types via the <A HREF = "pair_coeff.html">pair_coeff</A> command as in the examples
above, or in the data file or restart files read by the
<A HREF = "read_data.html">read_data</A> or <A HREF = "read_restart.html">read_restart</A>
commands, or by mixing as described below:
</P>
<PRE>pair_coeff type1 type2 c horizon s00 alpha
</PRE>
<P>The following coefficients must be defined for each pair of atoms types via
the pair_coeff command as in the examples above.
</P>
<UL><LI>c (peridynamic PMB "spring constant")
<LI>horizon (peridynamic horizon)
<LI>s00 (used when calculating if bond should break)
<LI>alpha (used when calculating if bond should break)
<UL><LI>K (energy/distance^2 units)
<LI>horizon (distance units)
<LI>s00 (?? units)
<LI>alpha (?? units)
</UL>
<P>K is the spring constant for Peridynamic bonds, the horizon is a
cutoff distance for truncating interactions, and s00 and alpha are
used as a bond breaking criteria. See the users guide for more
details.
</P>
<HR>
<P><B>Mixing, shift, table, tail correction, restart, rRESPA info</B>:
</P>
<P>This pair style does not support mixing. Thus, coefficients for all
I,J pairs must be specified explicitly.
</P>
<P>This pair style does not support the <A HREF = "pair_modify.html">pair_modify</A>
shift option.
</P>
<P>The <A HREF = "pair_modify.html">pair_modify</A> table and tail options are not
relevant for this pair style.
</P>
<P>This pair style writes its information to <A HREF = "restart.html">binary restart
files</A>, so pair_style and pair_coeff commands do not need
to be specified in an input script that reads a restart file.
</P>
<P>This pair style can only be used via the <I>pair</I> keyword of the
<A HREF = "run_style.html">run_style respa</A> command. It does not support the
<I>inner</I>, <I>middle</I>, <I>outer</I> keywords.
</P>
<HR>
<P><B>Restrictions:</B>
</P>
<P>The <I>peri/pmb</I> style is part of the "peridynamic" package. It is only
enabled if LAMMPS was built with that package (which it is not by
default). See the <A HREF = "Section_start.html#2_3">Making LAMMPS</A> section for
more info.
<P>The <I>peri/pmb</I> style is part of the "peri" package. It is only
enabled if LAMMPS was built with that package. See the <A HREF = "Section_start.html#2_3">Making
LAMMPS</A> section for more info.
</P>
<P><B>Related commands:</B>
</P>
@ -54,4 +81,11 @@ more info.
</P>
<P><B>Default:</B> none
</P>
<HR>
<A NAME = "Parks"></A>
<P><B>(Parks)</B> Parks, Lehoucq, Plimpton, Silling, to appear in Comp Phys
Comm, (2008).
</P>
</HTML>

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doc/pair_peri_pmb.txt
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@ -19,34 +19,67 @@ pair_coeff * * 1.6863e22 0.0015001 0.0005 0.25 :pre
[Description:]
The {peri/pmb} style implements the peridynamic bond-based prototype
microelastic brittle (PMB) model. Please see the
"PDLAMMPS"_http://www.sandia.gov/~mlparks/papers/PDLAMMPS.pdf user guide for more
details.
Style {peri/pmb} style implements the Peridynamic bond-based prototype
microelastic brittle (PMB) model, which can be used to model materials
at the mesoscopic or macroscopic scale. The implementation of
Peridynamics in LAMMPS is described in "(Parks)"_#Parks. Also see the
"PDLAMMPS user
guide"_http://www.sandia.gov/~mlparks/papers/PDLAMMPS.pdf for more
details about this particular potential.
The syntax for the pair_coeff command is:
The following coefficients must be defined for each pair of atom
types via the "pair_coeff"_pair_coeff.html command as in the examples
above, or in the data file or restart files read by the
"read_data"_read_data.html or "read_restart"_read_restart.html
commands, or by mixing as described below:
pair_coeff type1 type2 c horizon s00 alpha :pre
K (energy/distance^2 units)
horizon (distance units)
s00 (?? units)
alpha (?? units) :ul
The following coefficients must be defined for each pair of atoms types via
the pair_coeff command as in the examples above.
K is the spring constant for Peridynamic bonds, the horizon is a
cutoff distance for truncating interactions, and s00 and alpha are
used as a bond breaking criteria. See the users guide for more
details.
c (peridynamic PMB "spring constant")
horizon (peridynamic horizon)
s00 (used when calculating if bond should break)
alpha (used when calculating if bond should break) :ul
:line
[Mixing, shift, table, tail correction, restart, rRESPA info]:
This pair style does not support mixing. Thus, coefficients for all
I,J pairs must be specified explicitly.
This pair style does not support the "pair_modify"_pair_modify.html
shift option.
The "pair_modify"_pair_modify.html table and tail options are not
relevant for this pair style.
This pair style writes its information to "binary restart
files"_restart.html, so pair_style and pair_coeff commands do not need
to be specified in an input script that reads a restart file.
This pair style can only be used via the {pair} keyword of the
"run_style respa"_run_style.html command. It does not support the
{inner}, {middle}, {outer} keywords.
:line
[Restrictions:]
The {peri/pmb} style is part of the "peridynamic" package. It is only
enabled if LAMMPS was built with that package (which it is not by
default). See the "Making LAMMPS"_Section_start.html#2_3 section for
more info.
The {peri/pmb} style is part of the "peri" package. It is only
enabled if LAMMPS was built with that package. See the "Making
LAMMPS"_Section_start.html#2_3 section for more info.
[Related commands:]
"pair_coeff"_pair_coeff.html
[Default:] none
:line
:link(Parks)
[(Parks)] Parks, Lehoucq, Plimpton, Silling, to appear in Comp Phys
Comm, (2008).