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<a name = "hj-top"> </a><table class = "table1" id = "table11"><tr><td><table class = "DocHeader"><tr><td class = "DocHeader1" colspan = "2"><h1> Displacement Check against Solids (CHECK_SOLID)</h1></td></tr><tr><td class = "DocHeader4" colspan = "2"/></tr><tr><td class = "DocHeader3"><table class = "DocHeaderIntro" id = "table12"><tr><td class = "Intro1Only"><p class = "header"><p class = "abstract">
<span class = "shortdesc">This section gives information on the CHECK_SOLID design variable constraint.</span>

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</p></td></tr></table></td><td class = "DocHeader2"><table class = "DocTopicsSeeAlso" id = "table13"><tr><td class = "TopicsTitle">See Also</td></tr></table><table class = "DocTopicsInOtherGuides" id = "table14"><tr><td height = "8px"/></tr><tr><td class = "TopicsTitleNormal">In Other Guides</td></tr><tr><td><a title = "Defines restrictions of the design variables in bead optimization." href = "../TsoCmdMap/tso-r-cmd-dvconBead.htm#tso-r-cmd-dvconBead">DVCON_BEAD</a></td></tr></table></td></tr></table>




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<p>It is possible to define geometric primitives (solids) as a restriction
of the node displacements. Geometric primitives are defined using the
SOLID
parameter. The <span class = "ph">SOLID</span> parameter allows for the definition of
circles, circle segments, ring segments, and rectangles in two-dimensional
models and cylinders, cylinder segments, tubes, cubes, cube segments
in three-dimensional models. There is a differentiation between
a variation solid and a restriction solid (<span class = "ph uicontrol">variation area</span>
or <span class = "ph uicontrol">restriction area</span>).</p>
<p>The parameter:</p>
<pre class = "codeblock">
<code class = "ph codeph">CHECK_SOLID =<span class = "ph"> solid_name
</span></code></pre>
<p>specifies a solid whose borders might not be penetrated. The solid must
be defined with a <code class = "ph codeph">SOLID</code> command before being referenced.</p>
<p><table class = "Remark" id = "table132"><tr><td class = "Remark"><span class = "run-in.important">Important:
				</span><span class = "notecontent"><ol class = "ol" id = "tso-c-usr-bead-restrictions-CheckSolid__ol_E046B46DBF984071ADD3B7D028060934">
<li class = "li">Up to six different <code class = "ph codeph">CHECK_SOLID</code> parameters can be defined
in every <code class = "ph codeph">DVCON_BEAD</code> command. They are executed in the
order of their declaration within the <code class = "ph codeph">DVCON_BEAD</code> command.</li>
<li class = "li">If the solid is a variation solid, all nodes of the node group in
the start model (see <code class = "ph codeph">ND_GROUP</code> parameter) must be located
inside the variation solid. If nodes are located outside the variation
solid, the <code class = "ph codeph">DVCON_BEAD</code> definition will be rejected. If
the solid is a restriction solid, all nodes of the node group in the
start model must be located outside the restriction solid. If nodes are
located inside the restriction solid, the <code class = "ph codeph">DVCON_BEAD</code>
definition will be rejected.</li>
</ol></span></td></tr></table>
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