Week 3 - 2D meshing for Sheet metal

AIM: 2D meshing for Sheet metal

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
12	Tria Percentage	15

Geometry:

geometry in wire frame mode

• Geometry cleanup

Geometry check up

change perimeters length as 0.5mm ( classic mesh - perimeters - length )

create new furface ( using new faces & Offset option )

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After clearing all errors

• Midsurface

creating midsurface using offset option

here we see Midsurface. we assign Midsurface as a new PID ( thickness 1.5mm )

• Quality Criteria

Then we assign Quality parameters for meshing

select mesh parameters

This is a symmetric body so we can delete half section . And after meshing completed we used Transform - Copy option . so we create remaing part as it is.

here we use Best mesh ( classic mesh - mesh generation - best mesh )

For mesh correction we used

1. Reconstruct = Reconstruct the mesh on FEM & Macro areas
2. Reshape = Automatic function which improves mesh quality
3. Smooth = Smoothing the mesh on selected macro area's or FEM

file: https://drive.google.com/file/d/14fkbmB42Xe-2lajfO2A4aY-tEfs4lnvV/view?usp=sharing