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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>About Symmetry Conditions</h1></td></tr><tr><td class = "DocHeader4" colspan = "2"/></tr><tr><td class = "DocHeader3" colspan = "2"><table class = "DocThemeIntro" id = "table12"><tr><td class = "Intro1Only"><p class = "shortdesc">Different symmetry conditions can be defined for an optimization in <span class = "ph">SIMULIA Tosca Structure</span>. They can be used for obtaining symmetrical results using nonsymmetrical meshes, saving
        the processing time for the FE-calculation. In addition, symmetrical <span class = "ph">load case</span> can often be reduced in the FE model. 
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<p>The following symmetry conditions are available with <span class = "ph">SIMULIA Tosca Structure</span>:</p>
<ul class = "ul">
<li class = "li">reflection symmetry</li>
<li class = "li">point symmetry</li>
<li class = "li">rotational symmetry</li>
<li class = "li">cyclic symmetry (replication of an area with a given distance) </li>
<li class = "li">link condition (coupling of arbitrary areas of the model)</li>
</ul>
<p>A beam without symmetry (left) and with reflection symmetry (right) is shown in the following figure.</p>
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<p>An example of point symmetry (left) and rotational symmetry (right) is demonstrated as next.</p>
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<p>The last example demonstrates the cyclic symmetry (left) and a link condition (right).</p>
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