2D meshing for Sheet Metal Car Hood

Mid-Surface and Meshing of Car Hood:

AIM:

For the given Hood model, Take the mid surface for all the components after checking the geometrical errors and mesh the mid surface with the given element Quality criteria. (Refer the table Below for the Quality criteria)

S.No	Quality Criteria	Value
1	Target/Average length	5
2	Minimum Length	2
3	Maximum Length	7
4	Aspect	3
5	Warpage	15
6	Skewness	45
7	Jacobian	0.7
8	Minimum Quad Angle	45
9	Maximum Quad Angle	135
10	Minimum Tria Angle	30
11	Maximum Tria Angle	120
10	Tria Percentage	15

PROCEDURE:

The Given model is opened in ANSA.

Mid-Surface of each Property is generated and added as a new Property.

Each component is selected and the geometry cleanup and meshing is done foe each.

The Quality Criterias are input before the meshing.

GEOMETRY:

The following Geometry was opened:

Mid-surfacing was performed on each part. The following Midsurfaces were obtained:

The difference between the 3D geometry and the mid-surface can be identified by the single (red) and double cons(yellow).

The new property is created and given a thickness using the following :

The following are the respective geometry components and their meshing obtained:

Hinge Reinforcement:

Latch Reinforcement:

Outer Extract:

Inner Extract:

The following Quality Criterias were input:

CONCLUSION:
Performed manual topology cleanup, mid-surface extraction and 2D meshing of the given model.

Successfully meshed the component based on input quality criteria.