Week 6-Meshing of Hood Challenge

AIM: Mesh the given part with the given mesh parameters.

For meshing the given model, the steps are as follows:

Step 1: Import the given model using File - Import - Geometry - (Select IGES file format).

Fig: Imported Geometry

Step 2: Check for the thickness of the component to determine if the model is Plast or Sheet metal.

Since the component had uniform thickness, it falls under sheet metal criteria.

Step 3: Check for the Solid or Shell element (selection)model and remove the Solid part if the thickness is less than 6mm.

Shift +F2 - Select "Solids" - by display - delete

Step 4: Geometry Cleanup (Wireframe geometry View)

Step 5: Set Quality Criteria as given in the problem

Preference - Criteria File Setting

Step 6: Midsurface Creation

Geometry - Midsurface - Extraction Option - Skin Offset and auto extraction - surface - display - extract.

Step 7: Preference Settings

Preferences - Criteria File Settings

Step 8: 2D Automesh

2D - Automesh - (Element Size = 5) - Flow: align, Map: Size; Skew - options to be activated.

Step 9: Quality Index

Quality Index - Cleanup Tool - Smooth

Step 10: Save failed elements and use mask option to retrieve the element to determine the location of failed elements.

Step 11: Use temp nodes option to locate the region of failed elements and correct the geometry using - Line toggle and draw midline at location lower than 2mm.

Step 12: Once the geometry is ready, use 2D - automesh and smooth option in the quality index to reduce the number of failed elements. Further use rebuild mesh, replace, smooth and translate options to further reduce the number of failed elements.

Conclusion:

The final meshed geometry is saved with 0.1% failed elements, which is determined to be within an acceptable range.