Page Menu
Home
c4science
Search
Configure Global Search
Log In
Files
F96385230
pair_peri_pmb.html
No One
Temporary
Actions
Download File
Edit File
Delete File
View Transforms
Subscribe
Mute Notifications
Award Token
Subscribers
None
File Metadata
Details
File Info
Storage
Attached
Created
Thu, Dec 26, 06:15
Size
2 KB
Mime Type
text/html
Expires
Sat, Dec 28, 06:15 (2 d)
Engine
blob
Format
Raw Data
Handle
23160848
Attached To
rLAMMPS lammps
pair_peri_pmb.html
View Options
<HTML>
<CENTER><A HREF = "http://lammps.sandia.gov">LAMMPS WWW Site</A> - <A HREF = "Manual.html">LAMMPS Documentation</A> - <A HREF = "Section_commands.html#comm">LAMMPS Commands</A>
</CENTER>
<HR>
<H3>pair_style peri/pmb command
</H3>
<P><B>Syntax:</B>
</P>
<PRE>pair_style peri/pmb
</PRE>
<P><B>Examples:</B>
</P>
<PRE>pair_style peri/pmb
pair_coeff * * 1.6863e22 0.0015001 0.0005 0.25
</PRE>
<P><B>Description:</B>
</P>
<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 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>
<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 "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>
<P><A HREF = "pair_coeff.html">pair_coeff</A>
</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>
Event Timeline
Log In to Comment