Shell Meshing Car Floor Panel for spare tire cabinet using HYPERMESH

AIM: To mesh the Car floor panel for the spare tire with 2D elements with 5mm target length, assign thickness, and property with the material.

The detailed quality criteria list is given below:

ABSTRACT:

It is a sheet metal part of thickness 0.75 mm and used for keeping the spare tire at the back cargo floor panel of a car. (as shown below). So, here in this challenge, we will mesh the part with 2D elements with a target length of 5mm and decent mesh flow.

METHODOLOGY:

1. Import geometry and do geometry cleanup
2. Extract the mid surface using the auto method (offset+plan+sweep)
3. check for topological error for extracted mid surface
4. Remove the feature failing for less than 2mm
5. Mesh the model and do mesh correction for any failing element.

PROCEDURE:

Quality criteria:

Set the quality criteria as per the requirement as shown below and save it for future reference.

Import geometry

Import the model and check the geometry properly you may find many free edges and triple cons. Fix all the topological errors and make sure before proceeding for mid-surface the geometry is closed.

Geometry Cleanup

After fixing the geometry toggle off the unwanted lines to get smooth mesh flow.(use auto clean up)

Mid-surface Extraction

using the Auto method to extract mid-surface i.e. Offset+plane+sweep. Few areas which cannot be taken during auto-mid use manual offset.

Meshing and mesh correction

Proceed for Meshing portion by portion or we can check with batch mesh and then proceed for mesh correction. this will save time.

Quality criteria check

None of the elements are failing for the quality criteria. so we can proceed with further quality checks.

Surface Normal quality check

Surface normals displayed with color, therefore the orientation continuity is maintained.

Free Edges quality check

No free edges found and the mesh connectivity is well maintained.

MATERIAL AND PROPERTY ASSIGNMENT

The property with thickness 0.75mm is assigned to the elements and material with steel (as shown below)

CONCLUSION:

The mesh generated is quite decent and is well at capturing important features. The material and the property is well assigned to the elements.