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      <title>Sectional Formability Advisor - Dialog Fields</title>
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      <div class="title_topic2" id="xps10_pagetitle">Sectional Formability Advisor - Dialog Fields</div>
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               <p class="para_td"> <a class="links" href="javascript:void(0)" onclick="top.openFile('bdydesign/formability_ov.html');return(false);">Sectional Formability Overview</a></p>
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               <p class="para_td"> <a class="links" href="javascript:void(0)" onclick="top.openFile('bdydesign/formability_proc.html');return(false);">Procedure</a></p>
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               <p class="para_td">Dialog Fields</p>
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               <p class="para_td">Sectional Formability Options</p>
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               <p align="center"><img align="bottom" src="graphics/sect_advsr_sht_body.gif"></p>
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               <p class="para_td"><b>Sheet Body&nbsp;&mdash;&nbsp;</b>Lets you select a DIE_LINEUP feature on which the task is to be performed. The DIE_LINEUP must have material properties defined in order to perform the analysis.
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               <p class="para_td"><b>Section Curve&nbsp;&mdash;&nbsp;</b>Lets you create a temporary section curve through the product. 
               </p>
               <p class="para_td"><b>Dynamic Section&nbsp;&mdash;&nbsp;</b>Use the Dynamic Section button to dynamically create a section curve in the selected sheet body. This takes you to the Section Analysis dialog where you can dynamically define a section in the sheet. (For information on using Section Analysis, see the Modeling Help.)
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                     <td valign="top" align="left"><img align="left" src="../graphics/tip.gif" alt="Tip" title="Tip"></td>
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                           <p class="para_tip_body"> The Section Analyses dialog functions as it would outside of Sectional Formability, with the following exceptions:</p>
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                  <li>
                     <p class="para_item">The product sheets are pre-selected and the dialog does not allow you to select a new face for analysis. </p>
                  </li>
                  <li>
                     <p class="para_item">You cannot create U or V constant planes. Only planar sections are allowed. </p>
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                  <li>
                     <p class="para_item">The Create Section Curve button is not selectable. A single section curve is created when you choose OK. </p>
                  </li>
                  <li>
                     <p class="para_item">The Multiple Sections option is not selectable. </p>
                  </li>
               </ul>
               <p class="para_td"><b>Specify Section Plane&nbsp;&mdash;&nbsp;</b></p>
               <p class="para_td">Displays the Plane Constructor dialog to let you define a section plane.</p>
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                           <p class="para_tip_body"> Section curves are joined wherever possible to form a single curve. If either the Dynamic Section or Specify Section Plane functions creates multiple disjoint curves, you are prompted to select one of them. The other curves are then discarded.</p>
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               <p class="para_td"><b>Create Section Curve&nbsp;&mdash;&nbsp;</b>Creates a permanent copy of the temporary section curve.
               </p>
               <p class="para_td"><b>Create Section Plane&nbsp;&mdash;&nbsp;</b>Creates a permanent Datum Plane in the plane of the section curve. 
               </p>
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               <p class="para_td"> <img align="bottom" src="graphics/sect_advsr_neutrl_pt.gif" border="0"></p>
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               <p class="para_td"><b>Neutral Point&nbsp;&mdash;&nbsp;</b>Lets you specify a neutral point on the section curve. A neutral point is a point of stress balance within the part. The resultant effect of compression and stretching is nullified.
               </p>
               <p class="para_td">In addition to specifying a neutral point, you can also define initial analysis parameters at the neutral point.</p>
               <p class="para_td">Strains (%)</p>
               <p class="para_td"><b>Target at Start &nbsp;&mdash;&nbsp;</b>The initial strain value along the section curve at the neutral point. (Note that all strains are represented as percentage values.)
               </p>
               <p class="para_td"><b>Default Normal&nbsp;&mdash;&nbsp;</b>The strain in the tangent plane, and in the direction normal to the tangent of the section (and not along the face normal) being analyzed.
               </p>
               <p class="para_td"><b>Friction Coefficient&nbsp;&mdash;&nbsp;</b>The ratio between the force (F) required to move an object and the weight or normal force ( N_0 ) of the object. Friction is important in metal forming because it adds to the effort of forming between the metal and the die. Friction Coeff = F/N_0.
               </p>
               <p class="para_td"><b>Thickness&nbsp;&mdash;&nbsp;</b>The sheet metal thickness of the part being analyzed.
               </p>
               <p class="para_td"><b>Reverse Direction&nbsp;&mdash;&nbsp;</b>Allows you to change the direction of the formability analysis relative to the neutral point. If the neutral point is an endpoint this button is turned off.
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               <p class="para_td"><b>End Point&nbsp;&mdash;&nbsp;</b>Lets you specify an end point for the analysis. A default end point displays at the end of the section curve.
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               <p class="para_td"><b>Analyze and Edit&nbsp;&mdash;&nbsp;</b>Lets you analyze the section curve and dynamically edit the curve segments.
               </p>
               <p class="para_td">On selecting this step the portion of the section curve between the neutral point and end point is approximated by a series of arc and flat segments. </p>
               <p class="para_td">The segments are analyzed, and starting at the neutral point, the results for the currently selected segment are displayed in the dialog. You can choose a segment:</p>
               <ul>
                  <li>
                     <p class="para_item">from the list box at the top of the dialog (entries are shown as either flat or arc)</p>
                  </li>
                  <li>
                     <p class="para_item">using the arrow buttons to move to the next or previous segment</p>
                  </li>
                  <li>
                     <p class="para_item">from the graphics window</p>
                  </li>
               </ul>
               <p class="para_td">Selecting a segment displays handles on it in the graphics window.</p>
               <ul>
                  <li>
                     <p class="para_item">Use circular handles to change the segment length.</p>
                  </li>
                  <li>
                     <p class="para_item">Use triangular handles to change the segment angle.</p>
                  </li>
                  <li>
                     <p class="para_item">Use rectangular handles to change the segment arc radius (not displayed for flat segments). </p>
                  </li>
               </ul>
               <p class="para_td"><b>Maximum Strain&nbsp;&mdash;&nbsp;</b>Defines the maximum acceptable peak strain before a segment is considered a deviation. Segments exceeding the maximum strain are displayed in the Strain Deviation Color.
               </p>
               <p class="para_td"><b>Strain Deviation Color&nbsp;&mdash;&nbsp;</b>Lets you change the Maximum Strain deviation color by selecting the color box.
               </p>
               <p class="para_td"><b>Segment Analysis&nbsp;&mdash;&nbsp;</b>The Segment Analysis list shows the values associated with the currently selected segment. Values for the current segment include:
               </p>
               <ul>
                  <li>
                     <p class="para_item"><b>Seg Length&nbsp;&mdash;&nbsp;</b>Arc length of the segment.
                     </p>
                  </li>
                  <li>
                     <p class="para_item"><b>Wrap Length&nbsp;&mdash;&nbsp;</b>The length of the binder section being stretched to form the sheet metal. This length is measured along the section by a plane whose normal is perpendicular to the punch direction, and passing &nbsp;through the neutral point.
                     </p>
                  </li>
                  <li>
                     <p class="para_item"><b>Start Disp&nbsp;&mdash;&nbsp;</b>Displacement at the start of the segment (closer to the neutral point).
                     </p>
                  </li>
                  <li>
                     <p class="para_item"><b>End Disp&nbsp;&mdash;&nbsp;</b>Displacement at the end of the segment.
                     </p>
                  </li>
                  <li>
                     <p class="para_item"><b>Angle&nbsp;&mdash;&nbsp;</b>Relative to the punch direction of the DIE_LINEUP.
                     </p>
                  </li>
                  <li>
                     <p class="para_item"><b>Radius&nbsp;&mdash;&nbsp;</b>of the arc (N/A for a flat segment).
                     </p>
                  </li>
                  <li>
                     <p class="para_item"><b>Start Along Strain&nbsp;&mdash;&nbsp;</b>Strain values at start of segment, along and normal to, section curve.
                     </p>
                  </li>
                  <li>
                     <p class="para_item"><b>End Along Strain&nbsp;&mdash;&nbsp;</b>Strain values at end of segment, along and normal to, section curve.
                     </p>
                  </li>
                  <li>
                     <p class="para_item"><b>Peak Along Strain&nbsp;&mdash;&nbsp;</b>Highest strain values that occurred in the segment. Along, and normal to, section curve.
                     </p>
                  </li>
               </ul>
               <p class="para_td"><b>Start Norm Strain&nbsp;&mdash;&nbsp;</b>Lets you set the initial strain normal to the section curve at the neutral point.
               </p>
               <p class="para_td"><b>End Norm Strain&nbsp;&mdash;&nbsp;</b>Lets you set the strain normal to the section curve at the end of the section.
               </p>
               <p class="para_td"><b>List Analysis&nbsp;&mdash;&nbsp;</b>Lists the analysis results for all the segments in the Information Window.
               </p>
               <p class="para_td"><b>Create Curve&nbsp;&mdash;&nbsp;</b>Lets you create a single curve that approximates the current set of segments. The curve is not temporary and will be retained when you leave Sectional Analysis.
               </p>
               <p class="para_td"><b>Grid Spacing&nbsp;&mdash;&nbsp;</b>Allows you to display a square grid behind the segments. The grid can be helpful when modifying segments. The value entered is the distance between grid lines. The grid is oriented in the plane of the curve and begins at the Neutral point. It covers all of the segments. A value of 0.0 (default) turns the grid off.
               </p>
               <p class="para_td"><b>Orient View to Section&nbsp;&mdash;&nbsp;</b>Specifies that the current view automatically orients to the plane of the section.
               </p>
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