Week 3 - 2D meshing for Sheet metal

AIM:-

The below-mentioned quality criteria have to follow, also meshing the component with a target size of 5 units, and assigning thickness at last:

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 To Accomplish The Given Task:-

Step1:-

We have to Download the model and import it into ANSA software.

This is the component given to perform the task, I imported it into the ANSA software.

Step2:-

After importing we need to check whether the geometry is perfect or not.

Step 3:-

See how the surface is in an improper state we need to fix it.

I created a new surface by clearing and deleting the unwanted surface to rectify the issue.

Step 4:-

Here to another issue that needs to be solved.

I cleared all the unwanted surfaces and formed a new surface.

Step 5:-

Here to solve this issue I relead the left point between two surfaces and then I used the TOPO option to rectify it.

Step 6:-

I resolved the issues and cleared all the issues in the parent component.

Step 7:-

I created the mid-surface by offsetting the surface.

Step 8:-

Some issues are raised in the mid-surface too we need to resolve them before meshing.

Step 9:-

First I resolved the issue after the arranged the lines.

Step 10:-

Another one is in the filleted region.

I resolve the issue by deleting the improper surface and creating a new one.

Step 11:-

I set down the perimeters according to the target element size.

Step 12:-

So now these regions are very small areas to capture by the elements and there can be element failure.

Here what I did is created a midline and deleted the other 2 lines the feature is safe and the failure issue has also been solved.

Step 13:-

See all over the surface there are lots of hot points and unwanted cuts which can affect the mesh flow.

I suppressed all the unwanted cons and formed proper cons.

Step 14:-

So after clearing all the issues in the mid-surface we need to set the quality parameters before meshing.

Step 15:-

Using mesh generation options I created a mesh on one side of the mid-surface because it is in symmetry up to some region.

Step 16:-

Then after I deleted the symmetry surface and cleared the mesh flow on the mid-surface.

Step 17:-

After resolving mesh issues I used the transform option to mirror the region.

Step 18:-

I meshed the surface on the left side which I had left.

Step 19:-

I used the TOPO option to stitch the surface and joined all the regions.

Step 20:-

I created a new property and assigned to it.

You can clearly see the thickness is assigned.

Result:-

By completing all the corrections we completed the task according to the given criteria. 

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
10	Tria Percentage	15