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      <title>Elements</title>
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      <div class="title_topic3" id="xps10_pagetitle">Elements </div>
      <hr noshade="true">
      <div class="title_division">Line Elements </div>
      <table cellpadding="8" width="100%" align="center">
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            <col span="1" width="79.11*">
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         <tbody>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">CBAR </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines a simple beam element. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">PBAR </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines the properties of a simple beam element (CBAR entry). </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">PBARL </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines the properties of a simple beam element (CBAR entry) by cross-sectional dimensions. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">BAROR </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Default for orientation and property for CBAR. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">BEAMOR </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Default for orientation and property for CBEAM. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">CBEAM </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines a beam element. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">PBEAM </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines the properties of a beam element (CBEAM entry).  This element may be used to model tapered beams. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">PBEAML </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines the properties of a beam element by cross-sectional dimensions. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">PBCOMP </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Alternate form of the PBEAM entry to define properties of a uniform cross-sectional beam referenced by a CBEAM entry. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">CBEND </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Connection definition for a curved beam. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">PBEND </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines the properties of a curved beam, curved pipe, or elbow element (CBEND entry). </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">CBUSH1D </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines the connectivity of a one-dimensional spring and viscous damper element. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">PBUSH1D </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines linear and nonlinear properties of a one-dimensional spring and damper element (CBUSH1D entry). </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">CONROD </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines a rod element without reference to a property entry. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">CROD </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines a tension-compression-torsion element. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">PROD </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines the properties of a rod element (CROD entry). </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">CTUBE </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines a tension-compression-torsion tube element. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">PTUBE </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines the properties of a thin-walled cylindrical tube element (CTUBE entry). </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">CWELD </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines a weld or fastener connecting two surface patches or points. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">PWELD </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines the properties of connector (CWELD) elements. </p>
               </td>
            </tr>
         </tbody>
      </table><br><div class="title_division">Surface Elements </div>
      <table cellpadding="8" width="100%" align="center">
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                  <p class="para_td">CTRIA3 </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines an isoparametric membrane-bending or plane-strain triangular plate element. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">CTRIA6 </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines a curved triangular shell element or plane-strain elemetn with six grid points. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">CTRIAR </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines an isoparametric membrane-bending triangular plate element.  However, this element does not include membrane-bending coupling.  It is a companion to the CQUADR element. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">CQUAD4 </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines an isoparametric membrane-bending or plane-strain quadrilateral plate element. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">CQUAD8 </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines a curved quadrilateral shell or plane-strain element with eight grid points. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">CQUAD </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines a plane-strain quadrilateral  element with up to nine grid points for use in fully nonlinear (i.e., large strain and large rotation) hyperelastic analysis. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">CQUADR </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines an isoparametric membrane and bending quadrilateral plate element. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">PLPLANE </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines the properties of a fully nonlinear (i.e., large strain and large rotation) hyperelastic plane-strain or axisymmetric element. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">PSHELL </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines the membrane, bending, transverse shear, and coupling properties of thin shell elements. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">PCOMP </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines the properties of an n-ply composite material laminate. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">CSHEAR </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines a shear panel element. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">PSHEAR </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines the properties of a shear panel (CSHEAR entry). </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">SNORM </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines a surface normal vector at a grid point for CQUAD4, CQUADR, CTRIA3, and CTRIAR shell elements. </p>
               </td>
            </tr>
         </tbody>
      </table><br><div class="title_division">Solid Elements </div>
      <table cellpadding="8" width="100%" align="center">
         <colgroup span="1">
            <col span="1" width="20.84*">
            <col span="1" width="79.16*">
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                  <p class="para_td">CTETRA </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines the connections of the four-sided solid element with four to ten grid points. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">CPENTA </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines the connections of a five-sided solid element with six to fifteen grid points. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">CHEXA </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines the connections of the six-sided solid element with eight to twenty grid points. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">PSOLID </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines the properties of solid elements (CHEXA, CPENTA, and CTETRA entries). </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">PLSOLID </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines a fully nonlinear (i.e., large strain and large rotation) hyperelastic solid element. </p>
               </td>
            </tr>
         </tbody>
      </table><br><div class="title_division">Scalar and Bushing Elements </div>
      <table cellpadding="8" width="100%" align="center">
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            <col span="1" width="20.89*">
            <col span="1" width="79.11*">
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         <tbody>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">CELASi </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Connection definition for scalar spring, also property definition for i=2 or 4. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">PELAS </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Specifies the stiffness, damping coefficient, and stress coefficient of a scalar elastic (spring) element (CELAS1 or CELAS3 entry). </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">PELAST </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines the frequency dependent properties for a PELAS Bulk Data entry. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">GENEL </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines a general element. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">CBUSH </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines a generalized spring-and-damper structural element that may be nonlinear or frequency dependent. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">PBUSH </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines the nominal property values for a generalized spring-and-damper structural element. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">PBUSHT </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines the frequency dependent properties or the stress dependent properties for a generalized spring and damper structural element. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">CBUSH1D </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines the connectivity of a one-dimensional spring and viscous damper element. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">PBUSH1D </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines linear and nonlinear properties of a one-dimensional spring and damper element (CBUSH1D entry). </p>
               </td>
            </tr>
         </tbody>
      </table><br><div class="title_division">Axisymmetric Elements </div>
      <table cellpadding="8" width="100%" align="center">
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            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">CCONEAX </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines a conical shell element. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">PCONEAX </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines the properties of a conical shell element described on a CCONEAX entry. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">CTRIAX6 </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines an isoparametric and axisymmetric triangular cross section ring element with midside grid points. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">CTRIAX </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines an axisymmetric triangular element with up to 6 grid points for use in fully nonlinear (i.e., large strain and large rotations) hyperelastic analysis. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">CQUADX </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines an  axisymmetric quadrilateral element with up to nine grid points for use in fully nonlinear (i.e., large strain and large rotations) hyperelastic analysis. </p>
               </td>
            </tr>
         </tbody>
      </table><br><div class="title_division">p-element Interface Elements </div>
      <table cellpadding="8" width="100%" align="center">
         <colgroup span="1">
            <col span="1" width="21.84*">
            <col span="1" width="78.16*">
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         <tbody>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">GMINTC </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines a p-interface element along a curve. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">PINTC </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Property definition for GMINTC. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">GMINTS </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines a p-interface element along a surface. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">PINTS </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Property definition for GMINTS. </p>
               </td>
            </tr>
         </tbody>
      </table><br><div class="title_division">Rigid Elements </div>
      <table cellpadding="8" width="100%" align="center">
         <colgroup span="1">
            <col span="1" width="21.55*">
            <col span="1" width="78.45*">
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         <tbody>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">RBAR </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines a rigid bar with six degrees-of-freedom at each end. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">RBE1 </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines a rigid body connected to an arbitrary number of grid points. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">RBE2 </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines a rigid body with independent degrees-of-freedom that are specified at a single grid point and with dependent degrees-of-freedom that are specified at an arbitrary number of grid points. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">RBE3 </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines the motion at a reference grid point as the weighted average of the motions at a set of other grid points. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">RROD </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines a pin-ended element that is rigid in translation. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">RSPLINE </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines multipoint constraints for the interpolation of displacements at grid points. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">RSSCON </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines multipoint constraints to model clamped connections of shell-to-solid elements. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">RTRPLT </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines a rigid triangular plate. </p>
               </td>
            </tr>
         </tbody>
      </table><br><div class="title_division">Mass Elements</div>
      <table width="100%" align="center">
         <colgroup span="1">
            <col span="1" width="22*">
            <col span="1" width="78*">
         </colgroup>
         <tbody>
            <tr>
               <td colspan="1" rowspan="1" valign="top">
                  <p class="para_td">CMASSi </p>
               </td>
               <td colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Connection definition for scalar mass, also property definition for i=2 or 4. </p>
               </td>
            </tr>
            <tr>
               <td colspan="1" height="25" rowspan="1" valign="top">
                  <p class="para_td">PMASS </p>
               </td>
               <td colspan="1" height="25" rowspan="1" valign="top">
                  <p class="para_td">Specifies the mass value of a scalar mass element (CMASS1 or CMASS3 entries). </p>
               </td>
            </tr>
            <tr>
               <td colspan="1" rowspan="1" valign="top">
                  <p class="para_td">CONM1 </p>
               </td>
               <td colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines a 6 x 6 symmetric mass matrix at a geometric grid point. </p>
               </td>
            </tr>
            <tr>
               <td colspan="1" rowspan="1" valign="top">
                  <p class="para_td">CONM2 </p>
               </td>
               <td colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines concentrated mass at a grid point. </p>
               </td>
            </tr>
         </tbody>
      </table><br><div class="title_division">Damping Elements </div>
      <table cellpadding="8" width="100%" align="center">
         <colgroup span="1">
            <col span="1" width="20.97*">
            <col span="1" width="79.03*">
         </colgroup>
         <tbody>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">CDAMPi </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Connection definition for a scalar damper, also property definition for i=2 or 4. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">PDAMP </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Specifies the damping value of a scalar damper element using defined CDAMP1 or CDAMP3 entries. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">PDAMP5 </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines the damping multiplier and references the material properties for damping.  CDAMP5 is intended for heat transfer analysis only. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">PDAMPT </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines the frequency-dependent properties for a PDAMP Bulk Data entry. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">CVISC </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines a viscous damper element. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">PVISC </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines properties of a one-dimensional viscous damping element (CVISC entry). </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">CBUSH1D </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">See line elements. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">PBUSH1D </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">See line elements. </p>
               </td>
            </tr>
         </tbody>
      </table><br><div class="title_division">Fluid and Acoustic Elements </div>
      <table cellpadding="8" width="100%" align="center">
         <colgroup span="1">
            <col span="1" width="21.29*">
            <col span="1" width="78.71*">
         </colgroup>
         <tbody>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">CAABSF </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines a frequency-dependent acoustic absorber element in coupled fluid-structural analysis. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">PAABSF </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines the properties of a frequency-dependent acoustic absorber element. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">CHEXA </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Connection definition for a pentahedron element in coupled fluid-structural analysis. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">CPENTA </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Connection definition for a tetrahedron element in coupled fluid-structural analysis. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">CTETRA </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines the connections of the four-sided solid element with four to ten grid points. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">PSOLID </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines the fluid properties of solid elements (CHEXA, CPENTA, and CTETRA entries). </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">PANEL </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Selects the set of structural grid points that define one or more panels. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">CHACAB </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines the acoustic absorber element in coupled fluid-structural analysis. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">PACABS </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines the properties of the acoustic absorber element. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">CHACBR </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines the acoustic barrier element. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">PACBAR </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines the properties of the acoustic barrier element. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">CAXIFi </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines an axisymmetric fluid element that connects i = 2, 3, or 4 fluid points. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">CFLUIDi </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines three types of fluid elements for an axisymmetric fluid model. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">CSLOTi </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines slot element for acoustic cavity analysis. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">ELIST </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines a list of structural elements for virtual fluid mass. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">SET1 </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines a list of structural grid points for aerodynamic analysis, XY-plots for SORT1 output, and the PANEL entry. </p>
               </td>
            </tr>
         </tbody>
      </table><br><div class="title_division">Heat Transfer Elements </div>
      <table cellpadding="8" width="100%" align="center">
         <colgroup span="1">
            <col span="1" width="21.24*">
            <col span="1" width="78.76*">
         </colgroup>
         <tbody>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">CHBDYi </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Connection definition for surface element (CHBDYE, CHBDYG, CHBDYP). </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">PHBDY </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">A property entry referenced by CHBDYP entries to give auxiliary geometric information for boundary condition surface elements. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">BDYOR </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines default values for the CHBDYP, CHBDYG, and CHBDYE entries. </p>
               </td>
            </tr>
         </tbody>
      </table><br><p class="para_division">The following elastic elements may also be used as heat conduction elements. </p>
      <table cellpadding="8" width="100%" align="center">
         <colgroup span="1">
            <col span="1" width="21.46*">
            <col span="1" width="78.54*">
         </colgroup>
         <tbody>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Linear: </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">CBAR, CROD, CONROD, CTUBE, CBEAM, CBEND. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Membrane: </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">CTRIA3, CTRIA6, CQUAD4, CQUAD8. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Axisymmetric: </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">CTRIAX6. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" height="25" rowspan="1" valign="top">
                  <p class="para_td">Solid: </p>
               </td>
               <td align="left" colspan="1" height="25" rowspan="1" valign="top">
                  <p class="para_td">CTETRA, CHEXA, CPENTA. </p>
               </td>
            </tr>
         </tbody>
      </table><br><div class="title_division">Dummy Elements </div>
      <table cellpadding="8" width="100%" align="center">
         <colgroup span="1">
            <col span="1" width="21.56*">
            <col span="1" width="78.44*">
         </colgroup>
         <tbody>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">ADUMi </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines attributes of the dummy elements (1 &le; i &le; 9). </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">CDUMi </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines a dummy element (1 &le; i &le; 9). </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">PDUMi </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines the properties of a dummy element (1 &le; i &le; 9).  Referenced by the CDUMi entry. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">PLOTEL </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines a one-dimensional dummy element for use in plotting. </p>
               </td>
            </tr>
         </tbody>
      </table><br><div class="title_division">Contact or Gap Elements </div>
      <table cellpadding="8" width="100%" align="center">
         <colgroup span="1">
            <col span="1" width="21.51*">
            <col span="1" width="78.49*">
         </colgroup>
         <tbody>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">CGAP </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines a gap or friction element. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">PGAP </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines the properties of the gap element (CGAP entry). </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">BCONP </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines the parameters for a contact region and its properties. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">BFRIC </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines frictional properties between two bodies in contact. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">BLSEG </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines a curve that consists of a number of line segments via grid numbers that may come in contact with another body. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">BWIDTH </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines widths or thicknesses for line segments in 3-D or 2-D slideline contact defined in the corresponding BLSEG Bulk Data entry. </p>
               </td>
            </tr>
         </tbody>
      </table><br><div class="title_division">Crack Tip Elements </div>
      <table cellpadding="8" width="100%" align="center">
         <colgroup span="1">
            <col span="1" width="21.60*">
            <col span="1" width="78.40*">
         </colgroup>
         <tbody>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">CRAC2D </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines a two-dimensional crack tip element. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">CRAC3D </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines a three-dimensional crack tip element. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">PRAC2D </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines the properties and stress evaluation techniques to be used with the CRAC2D structural element. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">PRAC3D </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines the properties of the CRAC3D structural element. </p>
               </td>
            </tr>
         </tbody>
      </table><br><div class="title_division">Aerodynamic Elements </div>
      <table cellpadding="8" width="100%" align="center">
         <colgroup span="1">
            <col span="1" width="22*">
            <col span="1" width="78*">
         </colgroup>
         <tbody>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">AEFACT </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines real numbers for aeroelastic analysis. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">AELINK </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines relationships between or among AESTAT and AESURF entries. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">AELIST </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines a list of aerodynamic elements to undergo the motion prescribed with the AESURF Bulk Data entry for static aeroelasticity. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">AESTAT </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Specifies rigid body motions to be used as trim variables in static aeroelasticity. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">AESURF </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Specifies an aerodynamic control surface as a member of the set of aerodynamic extra points. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">AESURFS </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Optional specification of the structural nodes associated with an aerodynamic control surface that has been defined on an AESURF entry. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">CAERO1 </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines an aerodynamic macro element (panel) in terms of two leading edge locations and side chords. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">CAERO2 </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines aerodynamic slender body and interference elements for Doublet-Lattice aerodynamics. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">CAERO3 </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines the aerodynamic edges of a Mach Box lifting surface.  If no cranks are present, this entry defines the aerodynamic Mach Box lifting surface. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">CAERO4 </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines an aerodynamic macro element for Strip theory. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">CAERO5 </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines an aerodynamic macro element for Piston theory. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">CSSCHD </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines a scheduled control surface deflection as a function of Mach number and angle of attack. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">PAERO1 </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines associated bodies for the panels in the Doublet-Lattice method. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">PAERO2 </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines the cross-sectional properties of aerodynamic bodies. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">PAERO3 </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines the number of Mach boxes in the flow direction and the location of cranks and control surfaces of a Mach box lifting surface. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">PAERO4 </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines properties of each strip element for Strip theory. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">PAERO5 </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines properties of each strip element for Piston theory. </p>
               </td>
            </tr>
         </tbody>
      </table><br><div class="title_division">Aerodynamic to Structure Interconnection </div>
      <table cellpadding="8" width="100%" align="center">
         <colgroup span="1">
            <col span="1" width="21.73*">
            <col span="1" width="78.27*">
         </colgroup>
         <tbody>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">SET1 </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines a list of structural grid points. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">SET2 </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines a list of structural grid points in terms of aerodynamic macro elements. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">SPLINE1 </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines a surface spline for interpolating motion and/or forces for aeroelastic problems on aerodynamic geometries defined by regular arrays of aerodynamic points. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">SPLINE2 </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines a beam spline for interpolating motion and/or forces for aeroelastic problems on aerodynamic geometries defined by regular arrays of aerodynamic points. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">SPLINE3 </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines a constraint equation for aeroelastic problems.  Useful for control surface constraints. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">SPLINE4 </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines a curved surface spline for interpolating motion and/or forces for aeroelastic problems on general aerodynamic geometries using either the Infinite Plate, Thin Plate or Finite Plate splining method. </p>
               </td>
            </tr>
            <tr>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">SPLINE5 </p>
               </td>
               <td align="left" colspan="1" rowspan="1" valign="top">
                  <p class="para_td">Defines a 1D beam spline for interpolating motion and/or forces for aeroelastic problems on aerodynamic geometries defined by irregular arrays of aerodynamic points. </p>
               </td>
            </tr>
         </tbody>
      </table><br></body>
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