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      <title>PSHEAR</title>
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      <div class="title_refTopic" id="xps10_pagetitle">PSHEAR </div>
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      <h4 class="refClassification">Shear Panel Property </h4>
      <p class="para_refTopic">Defines the properties of a shear panel (CSHEAR entry). </p>
      <div class="title_refCategory">Format: </div>
      <div class="refCategoryContent">
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                     <p class="para_th">1 </p>
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                     <p class="para_th">2 </p>
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                     <p class="para_th">3 </p>
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                     <p class="para_th">4 </p>
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                     <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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                     <p class="para_th">10 </p>
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                     <p class="para_td">PSHEAR </p>
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                     <p class="para_td">PID </p>
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                     <p class="para_td">MID </p>
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                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">T </p>
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                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">NSM </p>
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                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">F1 </p>
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                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">F2 </p>
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                  <td align="center" bgcolor="gray" colspan="1" rowspan="1">
                     <p class="para_td">&nbsp; </p>
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                     <p class="para_td">&nbsp; </p>
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                     <p class="para_td">&nbsp; </p>
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      <div class="title_refCategory">Example: </div>
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                     <p class="para_td">PSHEAR </p>
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                     <p class="para_td">17 </p>
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                     <p class="para_td">23 </p>
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                     <p class="para_td">42.6 </p>
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                     <p class="para_td">17.92 </p>
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                     <p class="para_td">4.236 </p>
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                     <p class="para_td">0.5 </p>
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                     <p class="para_td">&nbsp; </p>
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                     <p class="para_td">&nbsp; </p>
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                     <p class="para_td">&nbsp; </p>
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      <div class="title_refCategory">Fields:</div>
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                     <p class="para_th"><b class="uiTerm">Field </b></p>
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                     <p class="para_th"><b class="uiTerm">Contents </b></p>
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                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">PID </p>
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                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">Property identification number.  (Integer &gt; 0) </p>
                  </td>
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                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">MID </p>
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                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">Material identification number of a MAT1 entry.  (Integer &gt; 0) </p>
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                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">T </p>
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                     <p class="para_td">Thickness of shear panel. (Real &ne; 0.0) </p>
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                     <p class="para_td">NSM </p>
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                     <p class="para_td">Nonstructural mass per unit area.  (Real) </p>
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                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">F1 </p>
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                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">Effectiveness factor for extensional stiffness along edges 1-2 and 3-4.  See Remark <a class="links" href="javascript:void(0)" onclick="top.openFile('QRG/18topic_57.html#ref93326');return(false);">90-2. </a> (Real &ge; 0.0; Default = 0.0) 
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                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">F2 </p>
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                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">Effectiveness factor for extensional stiffness along edges 2-3 and 1-4.  See Remark <a class="links" href="javascript:void(0)" onclick="top.openFile('QRG/18topic_57.html#ref93326');return(false);">90-2. </a> (Real &ge; 0.0; Default = 0.0) 
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      <div class="title_refCategory">Remarks: </div>
      <div class="refCategoryContent">
         <ol type="1" start="1">
            <li>
               <p class="para_item">All PSHEAR entries should have unique identification numbers with respect to all other property entries. </p>
            </li>
            <li><a name="ref93326"></a><p class="para_item">The effective extensional area is defined by means of equivalent rods on the perimeter of the element.  If F1 &le; 1.01, the areas of the rods on edges 1-2 and 3-4 are set equal to (F1 · T · PA)/(L12 + L34) where PA is the panel surface area-half the vector cross product area of the diagonals-and L12, L34 are the lengths of sides 1-2 and 3-4.  Thus, if F1 = 1.0, the panel is fully effective for extension in the 1-2 direction.  If F1 &gt; 1.01, the areas of the rods on edges 1-2 and 3-4 are each set equal to 0.5 · F1 · T<sup class="superscript">2</sup>. 
               </p><a name="ref22040"></a><div class="figure">
                  <p align="center"><img align="bottom" src="graphics/bulkp-fig20.gif"></p>
               </div>
               <div class="title_figure">Figure. Extensional Area for Shear Panel </div>
               <p class="para_item">Thus, if F1 = 30, the effective width of skin contributed by the panel to the flanges on edges 1-2 and 3-4 is equal to 15T.  The significance of F2 for edges 2-3 and 1-4 is similar. </p>
            </li>
            <li>
               <p class="para_item">Poisson&rsquo;s ratio coupling for extensional effects is ignored. </p>
            </li>
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