Insert a replacement mid-sheet into a face pair

You can use the Replacement Mid-Sheet option in the Midsurface by Face Pairs dialog box to insert a sheet body, face, or datum plane that you create into a midsurface. With some face pairs, the mid-sheet the software creates may not be adequate. In those cases, you can:

1. Use the commands in the Modeling application to create your own sheet body, face, or datum plane. For example, you can use commands on the Home tab→Construction group along with the Extrude command to create a new sheet body.

2. Choose Surface tab→Surface group→Midsurface by Face Pairs.

3. In the Midsurface by Face Pairs dialog box, select the pair of faces in the Face Pair List for which you want to replace the mid-sheet.

4. Use the Replacement Mid-Sheet option to substitute the sheet body, face, or datum plane that you created as the mid-sheet for the face pair.The software makes a copy of the sheet body, face, or datum plane that you created and inserts the copy into the face pair as the mid-sheet. The software then extends or trims the replacement mid-sheet against the neighboring mid-sheets.Note: You can use the Skip Trimming method in the Advanced Trimming Tools options to prevent the software from trimming the replacement mid-sheets against the solid body, the faces in the pair, or the neighboring mid-sheets. Use Skip Trimming when you want to use the replacement mid-sheet without any modifications to its size or shape.

5. Before you create the FEM file for the midsurface, hide the original sheet body you created. This helps ensure that you don't inadvertently include this duplicate sheet body in the FEM file.

The following graphics show how you can substitute a replacement mid-sheet for the default mid-sheet results for a stack of cylinders.

• (A) shows the faces selected for side 1 of the pair, while (B) shows the faces selected for side 2 of the pair.

• (C) shows two different views of the mid-sheet that the software generated by default for this face pair. Notice that there is a missing face.

• (D) shows the sheet body that was created as the replacement mid-sheet for this face pair.

How do I

Create a midsurface by face pairs

Modify the face pairs in an existing midsurface

Define a midsurface with the Offset method

Define a midsurface with the User Defined method

Learn more

Creating midsurfaces before meshing

Selecting appropriate parts for midsurfacing

Creating a midsurface by pairing faces

Understanding face pair creation

Working with the Face Pair list

Understanding midsurface creation and trimming methods

Controlling midsurface display

Creating a midsurface with the Offset method

Creating user-defined midsurfaces

Quick links

Command reference

Pre/Post video examples

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Insert a replacement mid-sheet into a face pair, Simcenter 3D 2021.1 Series

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