Week_8_Plastic Model_1

AIM: To obtain the mid surface of the given component and mesh it with the given quality criteria.

Element quality criteria :

S.N	Quality Criteria	Value
1	Target Element Length	5 mm
2	Aspect Ratio	3
3	Skewness	45
4	Warping	30
5	Taper	0.5
6	Min. Length	3 mm
7	Max. Length	7 mm
8	Min angle Quad	45
9	Max angle Quad	135
10	Min angle Tria	30
11	Max angle Tria	110
12	Tria %	15

Procedure:

1. Import the given geometry of the B-Pillar in Hypermesh

2.Delete any solids in the geometry and check for topological errors such as missing or distorted faces.

3Generate the mid-surface for the geometry using a suitable method, such as manual mid-surface extraction.

4. Assign the mid-surface thickness by defining properties with the correct thickness and assigning them to the corresponding mid-surface components.

5.Define the quality criteria by pressing F10 on the keyboard and editing the settings.

6. Mesh the mid-surfaces using the auto mesh tool with a target element length of 5 mm and using quad and tria elements while avoiding tria elements as much as possible.

7.Clean the mesh for good quality and check the element connectivity.

8.Visualize the mesh with thickness by turning on the detailed 2D element representation option.

9.Check for any remaining errors or issues in the mesh

The two failed elements are the elements present at the lip of the component, near the rib section. The elements failed due to the minimum size criteria. solving those leads to distortion in the geometry.

Conclusion: Midsurface extraction, 2D meshing for the given plastic model has been done.The meshing of mid-surface was performed using the automesh tool with a target element length of 5 mm and avoiding tria elements as much as possible. The mesh was cleaned for good quality, and the element connectivity was also checked. The detailed 2D element representation option was used to visualize the mesh with thickness.