241 lines
15 KiB
HTML
241 lines
15 KiB
HTML
<!DOCTYPE html>
|
|
<html class="writer-html5" lang="en" >
|
|
<head>
|
|
<meta charset="utf-8" /><meta name="viewport" content="width=device-width, initial-scale=1" />
|
|
|
|
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
|
|
<title>bond_style zero command — LAMMPS documentation</title>
|
|
<link rel="stylesheet" href="_static/pygments.css" type="text/css" />
|
|
<link rel="stylesheet" href="_static/css/theme.css" type="text/css" />
|
|
<link rel="stylesheet" href="_static/sphinx-design.min.css" type="text/css" />
|
|
<link rel="stylesheet" href="_static/css/lammps.css" type="text/css" />
|
|
<link rel="shortcut icon" href="_static/lammps.ico"/>
|
|
<link rel="canonical" href="https://docs.lammps.org/bond_zero.html" />
|
|
<!--[if lt IE 9]>
|
|
<script src="_static/js/html5shiv.min.js"></script>
|
|
<![endif]-->
|
|
|
|
<script src="_static/jquery.js?v=5d32c60e"></script>
|
|
<script src="_static/_sphinx_javascript_frameworks_compat.js?v=2cd50e6c"></script>
|
|
<script src="_static/documentation_options.js?v=5929fcd5"></script>
|
|
<script src="_static/doctools.js?v=9bcbadda"></script>
|
|
<script src="_static/sphinx_highlight.js?v=dc90522c"></script>
|
|
<script src="_static/design-tabs.js?v=f930bc37"></script>
|
|
<script async="async" src="_static/mathjax/es5/tex-mml-chtml.js?v=cadf963e"></script>
|
|
<script src="_static/js/theme.js"></script>
|
|
<link rel="index" title="Index" href="genindex.html" />
|
|
<link rel="search" title="Search" href="search.html" />
|
|
<link rel="next" title="Angle Styles" href="angles.html" />
|
|
<link rel="prev" title="bond_style table command" href="bond_table.html" />
|
|
</head>
|
|
|
|
<body class="wy-body-for-nav">
|
|
<div class="wy-grid-for-nav">
|
|
<nav data-toggle="wy-nav-shift" class="wy-nav-side">
|
|
<div class="wy-side-scroll">
|
|
<div class="wy-side-nav-search" >
|
|
|
|
|
|
|
|
<a href="Manual.html">
|
|
|
|
<img src="_static/lammps-logo.png" class="logo" alt="Logo"/>
|
|
</a>
|
|
<div class="lammps_version">Version: <b>19 Nov 2024</b></div>
|
|
<div class="lammps_release">git info: </div>
|
|
<div role="search">
|
|
<form id="rtd-search-form" class="wy-form" action="search.html" method="get">
|
|
<input type="text" name="q" placeholder="Search docs" aria-label="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="Navigation menu">
|
|
<p class="caption" role="heading"><span class="caption-text">User Guide</span></p>
|
|
<ul>
|
|
<li class="toctree-l1"><a class="reference internal" href="Intro.html">1. Introduction</a></li>
|
|
<li class="toctree-l1"><a class="reference internal" href="Install.html">2. Install LAMMPS</a></li>
|
|
<li class="toctree-l1"><a class="reference internal" href="Build.html">3. Build LAMMPS</a></li>
|
|
<li class="toctree-l1"><a class="reference internal" href="Run_head.html">4. Run LAMMPS</a></li>
|
|
<li class="toctree-l1"><a class="reference internal" href="Commands.html">5. Commands</a></li>
|
|
<li class="toctree-l1"><a class="reference internal" href="Packages.html">6. Optional packages</a></li>
|
|
<li class="toctree-l1"><a class="reference internal" href="Speed.html">7. Accelerate performance</a></li>
|
|
<li class="toctree-l1"><a class="reference internal" href="Howto.html">8. Howto discussions</a></li>
|
|
<li class="toctree-l1"><a class="reference internal" href="Examples.html">9. Example scripts</a></li>
|
|
<li class="toctree-l1"><a class="reference internal" href="Tools.html">10. Auxiliary tools</a></li>
|
|
<li class="toctree-l1"><a class="reference internal" href="Errors.html">11. Errors</a></li>
|
|
</ul>
|
|
<p class="caption" role="heading"><span class="caption-text">Programmer Guide</span></p>
|
|
<ul>
|
|
<li class="toctree-l1"><a class="reference internal" href="Library.html">1. LAMMPS Library Interfaces</a></li>
|
|
<li class="toctree-l1"><a class="reference internal" href="Python_head.html">2. Use Python with LAMMPS</a></li>
|
|
<li class="toctree-l1"><a class="reference internal" href="Modify.html">3. Modifying & extending LAMMPS</a></li>
|
|
<li class="toctree-l1"><a class="reference internal" href="Developer.html">4. Information for Developers</a></li>
|
|
</ul>
|
|
<p class="caption" role="heading"><span class="caption-text">Command Reference</span></p>
|
|
<ul class="current">
|
|
<li class="toctree-l1"><a class="reference internal" href="commands_list.html">Commands</a></li>
|
|
<li class="toctree-l1"><a class="reference internal" href="fixes.html">Fix Styles</a></li>
|
|
<li class="toctree-l1"><a class="reference internal" href="computes.html">Compute Styles</a></li>
|
|
<li class="toctree-l1"><a class="reference internal" href="pairs.html">Pair Styles</a></li>
|
|
<li class="toctree-l1 current"><a class="reference internal" href="bonds.html">Bond Styles</a><ul class="current">
|
|
<li class="toctree-l2"><a class="reference internal" href="bond_bpm_rotational.html">bond_style bpm/rotational command</a></li>
|
|
<li class="toctree-l2"><a class="reference internal" href="bond_bpm_spring.html">bond_style bpm/spring command</a></li>
|
|
<li class="toctree-l2"><a class="reference internal" href="bond_class2.html">bond_style class2 command</a></li>
|
|
<li class="toctree-l2"><a class="reference internal" href="bond_fene.html">bond_style fene command</a></li>
|
|
<li class="toctree-l2"><a class="reference internal" href="bond_fene.html#bond-style-fene-nm-command">bond_style fene/nm command</a></li>
|
|
<li class="toctree-l2"><a class="reference internal" href="bond_fene_expand.html">bond_style fene/expand command</a></li>
|
|
<li class="toctree-l2"><a class="reference internal" href="bond_gaussian.html">bond_style gaussian command</a></li>
|
|
<li class="toctree-l2"><a class="reference internal" href="bond_gromos.html">bond_style gromos command</a></li>
|
|
<li class="toctree-l2"><a class="reference internal" href="bond_harmonic.html">bond_style harmonic command</a></li>
|
|
<li class="toctree-l2"><a class="reference internal" href="bond_harmonic_restrain.html">bond_style harmonic/restrain command</a></li>
|
|
<li class="toctree-l2"><a class="reference internal" href="bond_harmonic_shift.html">bond_style harmonic/shift command</a></li>
|
|
<li class="toctree-l2"><a class="reference internal" href="bond_harmonic_shift_cut.html">bond_style harmonic/shift/cut command</a></li>
|
|
<li class="toctree-l2"><a class="reference internal" href="bond_hybrid.html">bond_style hybrid command</a></li>
|
|
<li class="toctree-l2"><a class="reference internal" href="bond_lepton.html">bond_style lepton command</a></li>
|
|
<li class="toctree-l2"><a class="reference internal" href="bond_mesocnt.html">bond_style mesocnt command</a></li>
|
|
<li class="toctree-l2"><a class="reference internal" href="bond_mm3.html">bond_style mm3 command</a></li>
|
|
<li class="toctree-l2"><a class="reference internal" href="bond_morse.html">bond_style morse command</a></li>
|
|
<li class="toctree-l2"><a class="reference internal" href="bond_none.html">bond_style none command</a></li>
|
|
<li class="toctree-l2"><a class="reference internal" href="bond_nonlinear.html">bond_style nonlinear command</a></li>
|
|
<li class="toctree-l2"><a class="reference internal" href="bond_oxdna.html">bond_style oxdna/fene command</a></li>
|
|
<li class="toctree-l2"><a class="reference internal" href="bond_oxdna.html#bond-style-oxdna2-fene-command">bond_style oxdna2/fene command</a></li>
|
|
<li class="toctree-l2"><a class="reference internal" href="bond_oxdna.html#bond-style-oxrna2-fene-command">bond_style oxrna2/fene command</a></li>
|
|
<li class="toctree-l2"><a class="reference internal" href="bond_quartic.html">bond_style quartic command</a></li>
|
|
<li class="toctree-l2"><a class="reference internal" href="bond_rheo_shell.html">bond_style rheo/shell command</a></li>
|
|
<li class="toctree-l2"><a class="reference internal" href="bond_special.html">bond_style special command</a></li>
|
|
<li class="toctree-l2"><a class="reference internal" href="bond_table.html">bond_style table command</a></li>
|
|
<li class="toctree-l2 current"><a class="current reference internal" href="#">bond_style zero command</a><ul>
|
|
<li class="toctree-l3"><a class="reference internal" href="#syntax">Syntax</a></li>
|
|
<li class="toctree-l3"><a class="reference internal" href="#examples">Examples</a></li>
|
|
<li class="toctree-l3"><a class="reference internal" href="#description">Description</a></li>
|
|
<li class="toctree-l3"><a class="reference internal" href="#restrictions">Restrictions</a></li>
|
|
<li class="toctree-l3"><a class="reference internal" href="#related-commands">Related commands</a></li>
|
|
<li class="toctree-l3"><a class="reference internal" href="#default">Default</a></li>
|
|
</ul>
|
|
</li>
|
|
</ul>
|
|
</li>
|
|
<li class="toctree-l1"><a class="reference internal" href="angles.html">Angle Styles</a></li>
|
|
<li class="toctree-l1"><a class="reference internal" href="dihedrals.html">Dihedral Styles</a></li>
|
|
<li class="toctree-l1"><a class="reference internal" href="impropers.html">Improper Styles</a></li>
|
|
<li class="toctree-l1"><a class="reference internal" href="dumps.html">Dump Styles</a></li>
|
|
<li class="toctree-l1"><a class="reference internal" href="fix_modify_atc_commands.html">fix_modify AtC commands</a></li>
|
|
<li class="toctree-l1"><a class="reference internal" href="Bibliography.html">Bibliography</a></li>
|
|
</ul>
|
|
|
|
</div>
|
|
</div>
|
|
</nav>
|
|
|
|
<section data-toggle="wy-nav-shift" class="wy-nav-content-wrap"><nav class="wy-nav-top" aria-label="Mobile navigation menu" >
|
|
<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 style-external-links">
|
|
<div role="navigation" aria-label="Page navigation">
|
|
<ul class="wy-breadcrumbs">
|
|
<li><a href="Manual.html" class="icon icon-home" aria-label="Home"></a></li>
|
|
<li class="breadcrumb-item"><a href="bonds.html">Bond Styles</a></li>
|
|
<li class="breadcrumb-item active">bond_style zero command</li>
|
|
<li class="wy-breadcrumbs-aside">
|
|
<a href="https://www.lammps.org"><img src="_static/lammps-logo.png" width="64" height="16" alt="LAMMPS Homepage"></a> | <a href="Commands_all.html">Commands</a>
|
|
</li>
|
|
</ul><div class="rst-breadcrumbs-buttons" role="navigation" aria-label="Sequential page navigation">
|
|
<a href="bond_table.html" class="btn btn-neutral float-left" title="bond_style table command" accesskey="p"><span class="fa fa-arrow-circle-left" aria-hidden="true"></span> Previous</a>
|
|
<a href="angles.html" class="btn btn-neutral float-right" title="Angle Styles" accesskey="n">Next <span class="fa fa-arrow-circle-right" aria-hidden="true"></span></a>
|
|
</div>
|
|
<hr/>
|
|
</div>
|
|
<div role="main" class="document" itemscope="itemscope" itemtype="http://schema.org/Article">
|
|
<div itemprop="articleBody">
|
|
|
|
<p><span class="math notranslate nohighlight">\(\renewcommand{\AA}{\text{Å}}\)</span></p>
|
|
<section id="bond-style-zero-command">
|
|
<span id="index-0"></span><h1>bond_style zero command<a class="headerlink" href="#bond-style-zero-command" title="Link to this heading"></a></h1>
|
|
<section id="syntax">
|
|
<h2>Syntax<a class="headerlink" href="#syntax" title="Link to this heading"></a></h2>
|
|
<div class="highlight-LAMMPS notranslate"><div class="highlight"><pre><span></span><span class="k">bond_style</span><span class="w"> </span><span class="n">zero</span><span class="w"> </span><span class="n">keyword</span>
|
|
</pre></div>
|
|
</div>
|
|
<ul class="simple">
|
|
<li><p>zero or more keywords may be appended</p></li>
|
|
<li><p>keyword = <em>nocoeff</em></p></li>
|
|
</ul>
|
|
</section>
|
|
<section id="examples">
|
|
<h2>Examples<a class="headerlink" href="#examples" title="Link to this heading"></a></h2>
|
|
<div class="highlight-LAMMPS notranslate"><div class="highlight"><pre><span></span><span class="k">bond_style</span><span class="w"> </span><span class="n">zero</span>
|
|
<span class="k">bond_style</span><span class="w"> </span><span class="n">zero</span><span class="w"> </span><span class="n">nocoeff</span>
|
|
<span class="k">bond_coeff</span><span class="w"> </span><span class="o">*</span>
|
|
<span class="k">bond_coeff</span><span class="w"> </span><span class="o">*</span><span class="w"> </span><span class="m">2.14</span>
|
|
</pre></div>
|
|
</div>
|
|
</section>
|
|
<section id="description">
|
|
<h2>Description<a class="headerlink" href="#description" title="Link to this heading"></a></h2>
|
|
<p>Using an bond style of zero means bond forces and energies are not
|
|
computed, but the geometry of bond pairs is still accessible to other
|
|
commands.</p>
|
|
<p>As an example, the <a class="reference internal" href="compute_bond_local.html"><span class="doc">compute bond/local</span></a>
|
|
command can be used to compute distances for the list of pairs of bond
|
|
atoms listed in the data file read by the <a class="reference internal" href="read_data.html"><span class="doc">read_data</span></a>
|
|
command. If no bond style is defined, this command cannot be used.</p>
|
|
<p>The optional <em>nocoeff</em> flag allows to read data files with a BondCoeff
|
|
section for any bond style. Similarly, any bond_coeff commands
|
|
will only be checked for the bond type number and the rest ignored.</p>
|
|
<p>Note that the <a class="reference internal" href="bond_coeff.html"><span class="doc">bond_coeff</span></a> command must be used for
|
|
all bond types. If specified, there can be only one value, which is
|
|
going to be used to assign an equilibrium distance, e.g. for use with
|
|
<a class="reference internal" href="fix_shake.html"><span class="doc">fix shake</span></a>.</p>
|
|
</section>
|
|
<section id="restrictions">
|
|
<h2>Restrictions<a class="headerlink" href="#restrictions" title="Link to this heading"></a></h2>
|
|
<blockquote>
|
|
<div><p>none</p>
|
|
</div></blockquote>
|
|
</section>
|
|
<section id="related-commands">
|
|
<h2>Related commands<a class="headerlink" href="#related-commands" title="Link to this heading"></a></h2>
|
|
<p><a class="reference internal" href="bond_none.html"><span class="doc">bond_style none</span></a></p>
|
|
</section>
|
|
<section id="default">
|
|
<h2>Default<a class="headerlink" href="#default" title="Link to this heading"></a></h2>
|
|
<p>none</p>
|
|
</section>
|
|
</section>
|
|
|
|
|
|
</div>
|
|
</div>
|
|
<footer><div class="rst-footer-buttons" role="navigation" aria-label="Footer">
|
|
<a href="bond_table.html" class="btn btn-neutral float-left" title="bond_style table command" accesskey="p" rel="prev"><span class="fa fa-arrow-circle-left" aria-hidden="true"></span> Previous</a>
|
|
<a href="angles.html" class="btn btn-neutral float-right" title="Angle Styles" accesskey="n" rel="next">Next <span class="fa fa-arrow-circle-right" aria-hidden="true"></span></a>
|
|
</div>
|
|
|
|
<hr/>
|
|
|
|
<div role="contentinfo">
|
|
<p>© Copyright 2003-2025 Sandia Corporation.</p>
|
|
</div>
|
|
|
|
Built with <a href="https://www.sphinx-doc.org/">Sphinx</a> using a
|
|
<a href="https://github.com/readthedocs/sphinx_rtd_theme">theme</a>
|
|
provided by <a href="https://readthedocs.org">Read the Docs</a>.
|
|
|
|
|
|
</footer>
|
|
</div>
|
|
</div>
|
|
</section>
|
|
</div>
|
|
<script>
|
|
jQuery(function () {
|
|
SphinxRtdTheme.Navigation.enable(false);
|
|
});
|
|
</script>
|
|
|
|
</body>
|
|
</html> |