Performing a Numerical  Analysis

In Composites Design (CPD), Composites Engineering Design (CPE) and Composites Design for Manufacturing (CPM), the numerical analysis can be done on zones (i.e. zones groups or zones) or on plies (i.e. stacking or plies) but you can not select a mix of zones and plies.
Please note:

• an analysis of zones does not take cut-pieces into account.
• if you select a zones group, all the zones that it contains are analyzed.
• the result of a numerical analysis of plies can be stored in the CATPart (select the Persistent check box).
• the result of a numerical analysis of zones cannot be stored in the CATPart (the Persistent check box and OK are disabled).
  However, this result can be exported.

In DMU Composites Review (CPR), the numerical analysis can be performed on the whole CATProduct or on a selection of CATParts under the CATProduct. However the numerical analysis result will not be stored in the CATProduct: the Persistent check box and OK are disabled.

• Part_01.CATPart from the samples\Composites directory if you are working in CPD, CPE or CPM.
• CPD_01.CATProduct from the samples\Composites directory if you are working in CPR.

1. Click the Numerical Analysis icon .
   The Numerical Analysis dialog box is displayed.
   

• the Persistent check box is not active when you are in DMU Composites Review (CPR).
• the Persistent and the Take cut-pieces into account check boxes are not active when you have selected zones.

2. Click and select the entities to be analyzed.
   In CPD, CPE or CPM, you can select the stacking or a portion of it, or a zones group or a portion of it.
   
   In CPR you can select either the whole CATProduct
   
   or one or several CATParts under this CATProduct.
   
   If you select an entity under a CATPart, the CATPart itself is automatically selected.
   
   In our example, we selected the Stacking node.
   The analysis is automatically started, displaying the results in the Analysis frame.
   

3. If necessary and possible, select the Take cut-pieces into account check box.
   The analysis is updated with the information concerning the cut-pieces.
   
   You will note that the area increases due to the plies superposition.
   The numerical analysis of all the plies can now be exported in an external file (.xls or .txt).
   The default path is the path where the sample is stored.

4. Click Export to export the analysis result.
   An information message is displayed when data is successfully exported.
   
   Here is the information contained in the external file:

   in DMU Composites Review (CPR): In Composites Design (CPD), Composites Engineering Design (CPE) and Composites Design for Manufacturing (CPM): for zones: for plies:

5. Select a Material (as defined in the Material catalog) from the drop-down list if you want to filter the results.
   
   The data retrieved for each material enables you to create bills of material.

6. Check the Persistent option if it is available and if you want the analysis to be featurized and to be displayed in the specification tree.

7. In Composites Engineering Design (CPE) and Composites Design for Manufacturing (CPM), OK is available to exit the command and store the numerical analysis under the CATPart if you have selected plies.
   The Numerical Analysis element is displayed in the Stacking node under each sequence containing the selected above Material.
   
   In DMU Composites Review (CPR), or if you have selected zones in a CATPart context, click Cancel to exit the command.
   The numerical analysis result is not stored.

• You can perform a numerical analysis on a cut-piece.
• If you select Take cut-pieces into account for a ply containing cut-pieces, the computation is made from the cut-pieces geometries.
  Otherwise, it is made from the ply geometry.
• Even if Persistent is selected, no numerical analysis feature is created under each cut-piece.