Surface Topology Repair and 2D Element Meshing

Meshing an Automobile Hood Component

Objective:

To perform geometry cleanup and mesh the given parts with the below mentioned quality criteria.

Procedure:

Step 1. Open the given .hm model file, the surfaces are cleaned up and by removing all the free edges, by toggling them or filling the surfaces.

Step 2. Then, the midsurface is extracted using automatic method by \"offset+plane+sweep\" mode.

Step 3. The extracted midsurface is studied for symmetry, so that region can be meshed and reflected. The midsurface topology is repaired by defeaturing the fillets with radius less than 3mm and by removing the holes with diameter of 5mm or lesser. The surfaces edges are toggled to avoid mesh element failure.

The extracted midsurfaces after topology repair for part 1,2 and 3 are below.

Step 4. The surfaces are meshed with the aforementioned meshing quality criteria.

Step 5. The meshed elements are then assigned appropriate thicknesses determined from the enclosed surface geometry and also generic material is applied to the mesh.

Result:

The surface geometry is cleaned up and the midsurface is extracted and the surface topology is again repaired.

The elements were meshed to meet the mentioned meshing quality criteria and appropriate thickness is assigned to the mesh. Also, no element failure is ensured, also respecting and adhering to the best practices.