Week 3 - 2D meshing for sheet metal

Aim- For the given Hood model, Extract the mid surface for all the components and do checking for the geometrical errors and mesh the mid surface with the given element Quality criteria.

Objective- For the given component extract the mid surface and perform meshing on the mid surface with the given 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

12 Tria Percentage 15

Procedure-

1. Import the model in the ANSA

2. Do the Geometry clean up in the checks>Goemetry Fix all the errors arsing after executation of clean up with 100% no error.

3. Exctract the mid surface using middle tool in the faces section for all the 4 components

4. Assign the property and thickness to each mid surface.

5. Set the mesh parameter and quality criteria values.

6. Mesh the following components using the meshing tool. To create the inital mesh select Free in the mesh generation.

In the shell mesh select the improve to improve the mesh. Smooth the mesh using the smooth tool. Increase and decrease the elements in the Num +/- in the perimeter tab.

Improve the quality of the mesh by reconstructing and altering the elements using swap,split, stich tools.

Result- The mid surface of all the components are exctraced in successfully and all the mid surface are meshed with the given mesh parameters.

Conclusion- In this challenge we have performed the meshing on the mid surface exctraced from the given component.