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Finite Element Analysis by Pro- Mechanica

Finite Element Analysis by Pro- Mechanica. Steps in FEA using Pro-Mechanica. Step 1: Draw part in Pro-Engineer Step 2: Start Pro-Mechanica Step 3: Choose the Model Type Step 4: Apply the constraints Step 5: Apply the loads Step 6: Assign the material Step 7: Run the Analysis

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Finite Element Analysis by Pro- Mechanica

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  1. Finite Element Analysis by Pro- Mechanica

  2. Steps in FEA using Pro-Mechanica • Step 1: Draw part in Pro-Engineer • Step 2: Start Pro-Mechanica • Step 3: Choose the Model Type • Step 4: Apply the constraints • Step 5: Apply the loads • Step 6: Assign the material • Step 7: Run the Analysis • Step 8: View the results by post-processing

  3. Step 1: Creation of the part • Use Protrusion by Sweep to create this part (bar.prt)

  4. Step 2: Starting Pro-Mechanica • In Pro-Engineer window, go to Applications Mechanica to start Pro-Mechanica. • The part (bar.prt) will be loaded in Pro-Mechanica with a new set of icons for Structural, thermal Analysis

  5. Step 3: Choosing the model type • In Mechanica menu, select • Structure  Model  Model Type • Four different models can be created: • 3D Model • Plane Stress • Plane Strain • 2D Axisymmetric • We will select 3D Model

  6. Step 4: Applying the Constraints • Create a new constraint by • Model Constraints New Surface • Give a name for the constraints (fixed_face) and select the surface to be constrained • Specify the constraints (in our case will be fixed for all degrees of freedom) • Preview and press Ok

  7. Step 5: Applying the loads • Similar to Constraints, create a new load by Model  Load New  Surface • Give a name for the applied load (endload) • Select the surface where the load will be applied • Specify the loads (Fx:500, Fy:-250, Fz:0) • Preview and press Ok

  8. Step 6: Assigning the material • Model  Materials • A window will pop up with the list of Pro-Mechanica materials. Add the required material and then assign the material to the part. • Click on Edit if any change in material properties are to be made. • Press Ok

  9. Modeled part with constraints and loads

  10. Step 7: Running the Analysis • In Mechanica menu, select Analysis • Select File  New Static in “Analysis and Design Studies” dialog box and give a name for the analysis (bar). • The constraints and loads are automatically loaded. • In Convergence tab, select Quick Check to check for errors and then select Multi-pass adaptive for the reliable and accurate results. Change the order of the polynomial and percentage of convergence as required. • Finally, click on Run icon to start the analysis (click on Display Study Status to view the current status and completion of the analysis)

  11. Step 8: Viewing the results • For post-processing, select Results from Pro-Mechanica window • A new window will open, and click on “Insert a New Definition” icon. In the dialog box, select the folder where the analysis is saved. • Select Fringe as Display type, Stress as Quantity and von-mises as the stress component to display • Similarly, other quantities can be displayed in one window.

  12. Post-processing Results

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