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      <title>PLOADX1</title>
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      <div class="title_refTopic" id="xps10_pagetitle">PLOADX1 </div>
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      <h4 class="refClassification">Pressure Load on Axisymmetric Element </h4>
      <p class="para_refTopic">Defines surface traction to be used with the CQUADX, CTRIAX, and CTRIAX6 axisymmetric element. </p>
      <div class="title_refCategory">Format: </div>
      <div class="refCategoryContent">
         <table border="1" width="100%" align="center">
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               <col span="1" width="11.63*">
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               <col span="1" width="9.94*">
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               <col span="1" width="8.82*">
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            <thead>
               <tr>
                  <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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                  <th align="center" colspan="1" rowspan="1">
                     <p class="para_th">6 </p>
                  </th>
                  <th align="center" colspan="1" rowspan="1">
                     <p class="para_th">7 </p>
                  </th>
                  <th align="center" colspan="1" rowspan="1">
                     <p class="para_th">8 </p>
                  </th>
                  <th align="center" colspan="1" rowspan="1">
                     <p class="para_th">9 </p>
                  </th>
                  <th align="center" colspan="1" rowspan="1">
                     <p class="para_th">10 </p>
                  </th>
               </tr>
            </thead>
            <tbody>
               <tr>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">PLOADX1 </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">SID </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">EID </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">PA </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">PB </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">GA </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">GB </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">THETA </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">
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               <col span="1" width="12.29*">
               <col span="1" width="10.02*">
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               <col span="1" width="10.02*">
               <col span="1" width="10.02*">
               <col span="1" width="10.02*">
               <col span="1" width="10.02*">
               <col span="1" width="10.02*">
               <col span="1" width="8.13*">
               <col span="1" width="9.45*">
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            <tbody>
               <tr>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">PLOADX1 </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">200 </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">35 </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">3.5 </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">10.5 </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">10 </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">30 </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">20. </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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               <col span="1" width="84.07*">
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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>
               </tr>
            </thead>
            <tbody>
               <tr>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">SID </p>
                  </td>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">Load set identification number.  (Integer &gt; 0) </p>
                  </td>
               </tr>
               <tr>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">EID </p>
                  </td>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">Element identification number.  (Integer &gt; 0) </p>
                  </td>
               </tr>
               <tr>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">PA </p>
                  </td>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">Surface traction at grid point GA.  (Real) </p>
                  </td>
               </tr>
               <tr>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">PB </p>
                  </td>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">Surface traction at grid point GB.  (Real; Default = PA) </p>
                  </td>
               </tr>
               <tr>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">GA, GB </p>
                  </td>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">Corner grid points.  GA and GB are any two adjacent corner grid points of the element.  (Integer &gt; 0) </p>
                  </td>
               </tr>
               <tr>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">THETA </p>
                  </td>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">Angle between surface traction and inward normal to the line segment.  (Real; Default = 0.0) </p>
                  </td>
               </tr>
            </tbody>
         </table><br></div>
      <div class="title_refCategory">Remarks: </div>
      <div class="refCategoryContent">
         <ol type="1" start="1">
            <li>
               <p class="para_item">In the static solution sequences, the load set ID (SID) is selected by the Case Control command LOAD.  In the dynamic solution sequences, SID must be referenced in the LID field of an LSEQ entry, which in turn must be selected by the Case Control command LOADSET. </p>
            </li>
            <li>
               <p class="para_item">PLOADX1 is intended only for the CQUADX, CTRIAX, and CTRIAX6 elements. </p>
            </li>
            <li>
               <p class="para_item">The surface traction is assumed to vary linearly along the element side between GA and GB. </p>
            </li>
            <li>
               <p class="para_item">The surface traction is input as force per unit area. </p>
            </li>
            <li>
               <p class="para_item">THETA is measured counter-clockwise from the inward normal of the straight line between GA and GB, to the vector of the applied load, as shown in <a class="links" href="javascript:void(0)" onclick="top.openFile('QRG/18topic_44.html#ref47631');return(false);">Figure 17-</a> and <a class="links" href="javascript:void(0)" onclick="top.openFile('QRG/18topic_44.html#ref72389');return(false);">Figure 17-</a>.  Positive pressure is in the direction of inward normal to the line segment. 
               </p><a name="ref47631"></a><div class="figure">
                  <p align="center"><img align="bottom" src="graphics/bulkp-fig18.gif"></p>
               </div>
               <div class="title_figure">Figure. Pressure Load on CTRIAX6 or CTRIAX Element </div><a name="ref72389"></a><div class="figure">
                  <p align="center"><img align="bottom" src="graphics/bulkp-fig19.gif"></p>
               </div>
               <div class="title_figure">Figure. Pressure Load on CQUADX Element </div>
            </li>
         </ol>
      </div>
      <div class="title_refCategory">Remarks related to SOL 601: </div>
      <div class="refCategoryContent">
         <ol type="1" start="1">
            <li>
               <p class="para_item">To apply a pressure load with constant magnitude (with respect to time), SID is selected by Case Control command LOAD = SID for both static and transient analyses. </p>
            </li>
            <li>
               <p class="para_item">To apply a time-dependent pressure load, SID is referenced by the field EXCITEID = SID in the TLOAD1 entry. Time-dependent loads are selected by Case Control command DLOAD. </p>
            </li>
            <li>
               <p class="para_item">In large deformation analysis, the direction of pressure loads follows the deformation of the element by default. The use of LOADOPT = 0 in NXSTRAT entry causes pressure loads to be independent of deformation, i.e., the direction of pressure loads maintains its original direction. </p>
            </li>
         </ol>
      </div>
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