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      <title>FEFACE</title>
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      <div class="title_refTopic" id="xps10_pagetitle">FEFACE </div>
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      <h4 class="refClassification">Finite Element Face Definition </h4>
      <p class="para_refTopic">Defines geometric information that will be used in elements, surface definition, load definition, and boundary condition definition. </p>
      <div class="title_refCategory">Format: </div>
      <div class="refCategoryContent">
         <table border="1" width="100%" align="center">
            <colgroup span="1">
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                  <th align="center" colspan="1" rowspan="1">
                     <p class="para_th">1 </p>
                  </th>
                  <th align="center" colspan="1" rowspan="1">
                     <p class="para_th">2 </p>
                  </th>
                  <th align="center" colspan="1" rowspan="1">
                     <p class="para_th">3 </p>
                  </th>
                  <th align="center" colspan="1" rowspan="1">
                     <p class="para_th">4 </p>
                  </th>
                  <th align="center" colspan="1" rowspan="1">
                     <p class="para_th">5 </p>
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                     <p class="para_th">6 </p>
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                     <p class="para_th">7 </p>
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                     <p class="para_th">8 </p>
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                     <p class="para_th">9 </p>
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                  <th align="center" colspan="1" rowspan="1">
                     <p class="para_th">10 </p>
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            </thead>
            <tbody>
               <tr>
                  <td align="left" colspan="1" rowspan="1">
                     <p class="para_td">FEFACE </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">FACEID </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">GRID1 </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">GRID2 </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">GRID3 </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">GRID4 </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">CIDBC </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">SURFID </p>
                  </td>
                  <td align="center" bgcolor="gray" colspan="1" rowspan="1">
                     <p class="para_td">&nbsp; </p>
                  </td>
                  <td align="center" bgcolor="gray" colspan="1" rowspan="1">
                     <p class="para_td">&nbsp; </p>
                  </td>
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            </tbody>
         </table><br></div>
      <div class="title_refCategory">Example: </div>
      <div class="refCategoryContent">
         <table border="1" width="100%" align="center">
            <colgroup span="1">
               <col span="1" width="10*">
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            </colgroup>
            <tbody>
               <tr>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">FEFACE </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">101 </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">123 </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">547 </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">243 </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">295 </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">12 </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">&nbsp; </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">&nbsp; </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">&nbsp; </p>
                  </td>
               </tr>
            </tbody>
         </table><br></div>
      <div class="title_refCategory">Fields:</div>
      <div class="refCategoryContent">
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            <colgroup span="1">
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               <col span="1" width="54.55*">
               <col span="1" width="16.08*">
               <col span="1" width="13.32*">
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                  <th align="left" colspan="1" rowspan="1">
                     <p class="para_th"><b class="uiTerm">Field </b></p>
                  </th>
                  <th align="left" colspan="1" rowspan="1">
                     <p class="para_th"><b class="uiTerm">Contents </b></p>
                  </th>
                  <th align="left" colspan="1" rowspan="1">
                     <p class="para_th"><b class="uiTerm">Type </b></p>
                  </th>
                  <th align="left" colspan="1" rowspan="1">
                     <p class="para_th"><b class="uiTerm">Default </b></p>
                  </th>
               </tr>
            </thead>
            <tbody>
               <tr>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">FACEID </p>
                  </td>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">Unique identification number.  See Remark <a class="links" href="javascript:void(0)" onclick="top.openFile('QRG/16topic_3.html#ref1KIj307juli');return(false);">4-1. </a></p>
                  </td>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">Integer &gt; 0 </p>
                  </td>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">Required </p>
                  </td>
               </tr>
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                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">GRIDi </p>
                  </td>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">Identification number of end GRIDsdefining a triangular or quadrilateral face.  See Remark <a class="links" href="javascript:void(0)" onclick="top.openFile('QRG/16topic_3.html#refG9JKj2bwend');return(false);">4-2. </a></p>
                  </td>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">Integer &gt; 0 </p>
                  </td>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">Required </p>
                  </td>
               </tr>
               <tr>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">CIDBC </p>
                  </td>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">Identification number of the coordinate system in which constraints specified on GMBC and GMSPC entries are defined.  See Remark <a class="links" href="javascript:void(0)" onclick="top.openFile('QRG/16topic_3.html#refRSKIj2a3juli');return(false);">4-3. </a></p>
                  </td>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">Integer &ge; 0 </p>
                  </td>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">Remark <a class="links" href="javascript:void(0)" onclick="top.openFile('QRG/16topic_3.html#refRSKIj2a3juli');return(false);">4-3. </a></p>
                  </td>
               </tr>
               <tr>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">SURFID </p>
                  </td>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">Alternate method used to specify the geometry of the edges of the face.  See Remarks <a class="links" href="javascript:void(0)" onclick="top.openFile('QRG/16topic_3.html#reffKIjd5juli');return(false);">4-4</a> and <a class="links" href="javascript:void(0)" onclick="top.openFile('QRG/16topic_3.html#refyKIj114juli');return(false);">4-5. </a></p>
                  </td>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">Integer &ge; 0 </p>
                  </td>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">0 </p>
                  </td>
               </tr>
            </tbody>
         </table><br></div>
      <div class="title_refCategory">Remarks: </div>
      <div class="refCategoryContent">
         <ol type="1" start="1">
            <li><a name="ref1KIj307juli"></a><p class="para_item"> An FEFACE entry is  required if any of the following situations exist: </p>
               <ul>
                  <li>
                     <p class="para_item">The geometry of the surface defined by SURFID is to be used by a finite element; </p>
                  </li>
                  <li>
                     <p class="para_item">CIDBC is specified for a face or surface; or </p>
                  </li>
                  <li>
                     <p class="para_item">If loads or constraints or enforced boundary conditions are applied to a surface. </p>
                  </li>
               </ul>
            </li>
            <li><a name="refG9JKj2bwend"></a><p class="para_item"> The shape (geometry) of the face is defined by the shape of the edges.  The points defined by GRIDi must be specified in either a clockwise or counterclockwise order. </p>
            </li>
            <li><a name="refRSKIj2a3juli"></a><p class="para_item"> If CIDBC is not blank, then it overrides the CIDBC specified on the GMSURF entry for this particular face.  A fatal message will be issued when more than one CIDBC is associated with any entity. </p>
            </li>
            <li><a name="reffKIjd5juli"></a><p class="para_item"> When SURFID is blank or 0, the edges will be considered linear unless there is an FEEDGE entry for the given edge. </p>
            </li>
            <li><a name="refyKIj114juli"></a><p class="para_item"> When SURFID &gt; 0, </p>
               <ul>
                  <li>
                     <p class="para_item">FEFACE associates the finite element model and the geometric information specified on the GMSURF entry. </p>
                  </li>
                  <li>
                     <p class="para_item">GRIDi defines a finite element face (clockwise or counter clockwise in order) that is on the SURFID surface. </p>
                  </li>
                  <li>
                     <p class="para_item">For the edges of this face, which are not defined by an FEEDGE entry, locally parametric cubic curves are fit to the geometric surface such that the two have the same tangent at GRIDi (C1 continuous). </p>
                  </li>
               </ul>
            </li>
            <li>
               <p class="para_item">Whenever a given edge of a face is common to two or more surfaces (i.e., lies on the intersecting curve), then the user must supply GMCURV and FEEDGE entries in order to resolve the conflict in the input geometry.  A fatal message is issued if an edge is not uniquely defined. </p><a name="ref96192"></a><div class="figure">
                  <p align="center"><img align="bottom" src="graphics/bulkfgil-fig03.gif"></p>
               </div>
               <div class="title_figure">Figure. Face Edge Common to Two Surfaces </div>
            </li>
            <li>
               <p class="para_item">The hierarchy set to resolve the conflicts arising in the Global System input data is described in the <a class="links" href="javascript:void(0)" onclick="top.openFile('QRG/16topic_20.html');return(false);">&ldquo;GMBC&rdquo; </a> entry description. 
               </p>
            </li>
         </ol>
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