Page Menu
Home
c4science
Search
Configure Global Search
Log In
Files
F74772255
compute_smd_contact_radius.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
Mon, Jul 29, 15:08
Size
7 KB
Mime Type
text/html
Expires
Wed, Jul 31, 15:08 (1 d, 21 h)
Engine
blob
Format
Raw Data
Handle
19433979
Attached To
rLAMMPS lammps
compute_smd_contact_radius.html
View Options
<!DOCTYPE html>
<!--[if IE 8]><html class="no-js lt-ie9" lang="en" > <![endif]-->
<!--[if gt IE 8]><!-->
<html
class=
"no-js"
lang=
"en"
>
<!--<![endif]-->
<head>
<meta
charset=
"utf-8"
>
<meta
name=
"viewport"
content=
"width=device-width, initial-scale=1.0"
>
<title>
compute smd/contact/radius command
—
LAMMPS documentation
</title>
<link
rel=
"stylesheet"
href=
"_static/css/theme.css"
type=
"text/css"
/>
<link
rel=
"stylesheet"
href=
"_static/sphinxcontrib-images/LightBox2/lightbox2/css/lightbox.css"
type=
"text/css"
/>
<link
rel=
"top"
title=
"LAMMPS documentation"
href=
"index.html"
/>
<script
src=
"_static/js/modernizr.min.js"
></script>
</head>
<body
class=
"wy-body-for-nav"
role=
"document"
>
<div
class=
"wy-grid-for-nav"
>
<nav
data-toggle=
"wy-nav-shift"
class=
"wy-nav-side"
>
<div
class=
"wy-side-nav-search"
>
<a
href=
"Manual.html"
class=
"icon icon-home"
>
LAMMPS
</a>
<div
role=
"search"
>
<form
id=
"rtd-search-form"
class=
"wy-form"
action=
"search.html"
method=
"get"
>
<input
type=
"text"
name=
"q"
placeholder=
"Search docs"
/>
<input
type=
"hidden"
name=
"check_keywords"
value=
"yes"
/>
<input
type=
"hidden"
name=
"area"
value=
"default"
/>
</form>
</div>
</div>
<div
class=
"wy-menu wy-menu-vertical"
data-spy=
"affix"
role=
"navigation"
aria-label=
"main navigation"
>
<!-- Local TOC -->
<div
class=
"local-toc"
><ul>
<li><a
class=
"reference internal"
href=
"#"
>
compute smd/contact/radius command
</a><ul>
<li><a
class=
"reference internal"
href=
"#syntax"
>
Syntax
</a></li>
<li><a
class=
"reference internal"
href=
"#examples"
>
Examples
</a></li>
<li><a
class=
"reference internal"
href=
"#description"
>
Description
</a></li>
<li><a
class=
"reference internal"
href=
"#restrictions"
>
Restrictions
</a></li>
<li><a
class=
"reference internal"
href=
"#related-commands"
>
Related commands
</a></li>
</ul>
</li>
</ul>
</div>
</div>
</nav>
<section
data-toggle=
"wy-nav-shift"
class=
"wy-nav-content-wrap"
>
<nav
class=
"wy-nav-top"
role=
"navigation"
aria-label=
"top navigation"
>
<i
data-toggle=
"wy-nav-top"
class=
"fa fa-bars"
></i>
<a
href=
"Manual.html"
>
LAMMPS
</a>
</nav>
<div
class=
"wy-nav-content"
>
<div
class=
"rst-content"
>
<div
role=
"navigation"
aria-label=
"breadcrumbs navigation"
>
<ul
class=
"wy-breadcrumbs"
>
<li><a
href=
"Manual.html"
>
Docs
</a>
»
</li>
<li>
compute smd/contact/radius command
</li>
<li
class=
"wy-breadcrumbs-aside"
>
<a
href=
"http://lammps.sandia.gov"
>
Website
</a>
<a
href=
"Section_commands.html#comm"
>
Commands
</a>
</li>
</ul>
<hr/>
</div>
<div
role=
"main"
class=
"document"
itemscope=
"itemscope"
itemtype=
"http://schema.org/Article"
>
<div
itemprop=
"articleBody"
>
<div
class=
"section"
id=
"compute-smd-contact-radius-command"
>
<span
id=
"index-0"
></span><h1>
compute smd/contact/radius command
</h1>
<div
class=
"section"
id=
"syntax"
>
<h2>
Syntax
</h2>
<div
class=
"highlight-default"
><div
class=
"highlight"
><pre><span></span><span
class=
"n"
>
compute
</span>
<span
class=
"n"
>
ID
</span>
<span
class=
"n"
>
group
</span><span
class=
"o"
>
-
</span><span
class=
"n"
>
ID
</span>
<span
class=
"n"
>
smd
</span><span
class=
"o"
>
/
</span><span
class=
"n"
>
contact
</span><span
class=
"o"
>
/
</span><span
class=
"n"
>
radius
</span>
</pre></div>
</div>
<ul
class=
"simple"
>
<li>
ID, group-ID are documented in
<a
class=
"reference internal"
href=
"compute.html"
><span
class=
"doc"
>
compute
</span></a>
command
</li>
<li>
smd/contact/radius = style name of this compute command
</li>
</ul>
</div>
<div
class=
"section"
id=
"examples"
>
<h2>
Examples
</h2>
<div
class=
"highlight-default"
><div
class=
"highlight"
><pre><span></span><span
class=
"n"
>
compute
</span>
<span
class=
"mi"
>
1
</span>
<span
class=
"nb"
>
all
</span>
<span
class=
"n"
>
smd
</span><span
class=
"o"
>
/
</span><span
class=
"n"
>
contact
</span><span
class=
"o"
>
/
</span><span
class=
"n"
>
radius
</span>
</pre></div>
</div>
</div>
<div
class=
"section"
id=
"description"
>
<h2>
Description
</h2>
<p>
Define a computation which outputs the contact radius, i.e., the
radius used to prevent particles from penetrating each other. The
contact radius is used only to prevent particles belonging to
different physical bodies from penetrating each other. It is used by
the contact pair styles, e.g., smd/hertz and smd/tri_surface.
</p>
<p>
See
<a
class=
"reference external"
href=
"USER/smd/SMD_LAMMPS_userguide.pdf"
>
this PDF guide
</a>
to using Smooth
Mach Dynamics in LAMMPS.
</p>
<p>
The value of the contact radius will be 0.0 for particles not in the
specified compute group.
</p>
<p><strong>
Output info:
</strong></p>
<p>
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
<a
class=
"reference internal"
href=
"Section_howto.html#howto-15"
><span
class=
"std std-ref"
>
Section_howto 15
</span></a>
for an overview of
LAMMPS output options.
</p>
<p>
The per-particle vector values will be in distance
<a
class=
"reference internal"
href=
"units.html"
><span
class=
"doc"
>
units
</span></a>
.
</p>
</div>
<div
class=
"section"
id=
"restrictions"
>
<h2>
Restrictions
</h2>
<p>
This compute is part of the USER-SMD package. It is only enabled if
LAMMPS was built with that package. See the
<span
class=
"xref std std-ref"
>
Making LAMMPS
</span>
section for more info.
</p>
</div>
<div
class=
"section"
id=
"related-commands"
>
<h2>
Related commands
</h2>
<p><a
class=
"reference internal"
href=
"dump.html"
><span
class=
"doc"
>
dump custom
</span></a>
smd/hertz smd/tri_surface
</p>
<p><strong>
Default:
</strong>
none
</p>
</div>
</div>
</div>
</div>
<footer>
<hr/>
<div
role=
"contentinfo"
>
<p>
©
Copyright 2013 Sandia Corporation.
</p>
</div>
Built with
<a
href=
"http://sphinx-doc.org/"
>
Sphinx
</a>
using a
<a
href=
"https://github.com/snide/sphinx_rtd_theme"
>
theme
</a>
provided by
<a
href=
"https://readthedocs.org"
>
Read the Docs
</a>
.
</footer>
</div>
</div>
</section>
</div>
<script
type=
"text/javascript"
>
var
DOCUMENTATION_OPTIONS
=
{
URL_ROOT
:
'./'
,
VERSION
:
''
,
COLLAPSE_INDEX
:
false
,
FILE_SUFFIX
:
'.html'
,
HAS_SOURCE
:
true
};
</script>
<script
type=
"text/javascript"
src=
"_static/jquery.js"
></script>
<script
type=
"text/javascript"
src=
"_static/underscore.js"
></script>
<script
type=
"text/javascript"
src=
"_static/doctools.js"
></script>
<script
type=
"text/javascript"
src=
"https://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"
></script>
<script
type=
"text/javascript"
src=
"_static/sphinxcontrib-images/LightBox2/lightbox2/js/jquery-1.11.0.min.js"
></script>
<script
type=
"text/javascript"
src=
"_static/sphinxcontrib-images/LightBox2/lightbox2/js/lightbox.min.js"
></script>
<script
type=
"text/javascript"
src=
"_static/sphinxcontrib-images/LightBox2/lightbox2-customize/jquery-noconflict.js"
></script>
<script
type=
"text/javascript"
src=
"_static/js/theme.js"
></script>
<script
type=
"text/javascript"
>
jQuery
(
function
()
{
SphinxRtdTheme
.
StickyNav
.
enable
();
});
</script>
</body>
</html>
Event Timeline
Log In to Comment