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Introduction

Multiple mesh bodies can be bonded as one body by sharing nodes on contact surface between flexible bodies. 

In this case, each material property of bodies should be maintained as the same after FE merging.

Step 01 – Mesh the first body

Example file Download

[Steps]

1. Enter the Mesh Mode of the first body.
2. Mesh the first body.
3. Create the NodeSet at the area of the contacted surface. This NodeSet will be used as the imprint point of the other body.
4. Exit the Mesh Mode of the first FE body.

Step 02 – Mesh the second bodya. Imprint Point Method

[Steps]

1. Enter the Mesh Mode of the second body.
2. Click the 'Imprint Pont or Imprint NodeSet' to imprint the point on the second body.
3. [Imprint Point]

      a. Define 'Target Body‘.

      b. Click 'Node' button and select an available Flex body. Input the Distance Tolerance value and click the 'Calculate' button. The                  overlapped node points will be shown in the GUI.

      c. Click the ‘OK’ button.(If user wants to define the imprint point by manual, user can define the point using                                                    Add/Delete/Clear/Import/Export' function.)

    4. Mesh the second body by 'Mesh' function. Exit Mesh mode.

Step 03 – Merge the Meshed Bodies using FE Merge Function

[Steps]

1. Click the Merge Icon.
2. In the Merge Dialog box, select Source Body and Target Body.
3. Check the Options.
4. Input the 'Distance Tolerance' value.
5. Click the 'Calculate' button.
6. Through the Preview function, check the FE bodies in GUI. If the nodes between Target Body and Source Body are coincided well, the overlapped nodes will be displayed in GUI.
7. After confirming that shared nodes are coincided properly, click ‘OK’ button.
8. Once FE Merge operation starts, one FE Merge body will be generated from two FE bodies.

Step 04 – Merged FFlex body Modeling & Simulation

[Steps]

1. Create the fixed B.C at the end of merged body.
2. Create the NodeSet at the right side end of merged body.
3. Define the Load on the NodeSet with Expression:

       - Expression:IF(TIME-0.25: STEP(TIME,0,0,0.1, -15000), 0, 0 )

    4. Run the Simulation.

       - End Time : 0.5 sec

       - Steps : 100 Steps

    5.You can see the animation result of a merged FE body with Solid and Shell elements.